記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Springer Science and Business Media LLC  

Abstract

Dental drilling sounds can induce anxiety in some patients. This study aimed to use functional magnetic resonance imaging (fMRI) to assess the relationship between dental fear and auditory stimuli. Thirty-four right-handed individuals (21 women and 13 men; average age, 31.2 years) were selected. The level of dental fear was assessed using the dental fear survey (DFS). Based on a threshold DFS score > 52, participants were categorized into two groups: dental fear (DF) group (n = 12) and control group (n = 22). Two types of stimuli were presented in a single session: dental and neutral sounds. Cerebral activation during the presentation of these sounds was evaluated using contrast-enhanced blood oxygenation level-dependent fMRI. In the DF group, dental sounds induced significantly stronger activation in the left inferior frontal gyrus and left caudate nucleus (one-sample t test, P < 0.001). In contrast, in the control group, significantly stronger activation was observed in the bilateral Heschl’s gyri and left middle frontal gyrus (one-sample t test, P < 0.001). Additionally, a two-sample t test revealed that dental sounds induced a significantly stronger activation in the left caudate nucleus in the DF group than in the control group (P < 0.005). These findings suggest that the cerebral activation pattern in individuals with DF differs from that in controls. Increased activation of subcortical regions may be associated with sound memory during dental treatment.

DOI： 10.1007/s10266-023-00898-7

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その他リンク： https://link.springer.com/article/10.1007/s10266-023-00898-7/fulltext.html

掲載種別：研究論文（学術雑誌）   出版者・発行元：Frontiers Media SA  

Introduction

Humans mainly utilize visual and auditory information as a cue to infer others’ emotions. Previous neuroimaging studies have shown the neural basis of memory processing based on facial expression, but few studies have examined it based on vocal cues. Thus, we aimed to investigate brain regions associated with emotional judgment based on vocal cues using an N-back task paradigm.

Methods

Thirty participants performed N-back tasks requiring them to judge emotion or gender from voices that contained both emotion and gender information. During these tasks, cerebral hemodynamic response was measured using functional near-infrared spectroscopy (fNIRS).

Results

The results revealed that during the Emotion 2-back task there was significant activation in the frontal area, including the right precentral and inferior frontal gyri, possibly reflecting the function of an attentional network with auditory top-down processing. In addition, there was significant activation in the ventrolateral prefrontal cortex, which is known to be a major part of the working memory center.

Discussion

These results suggest that, compared to judging the gender of voice stimuli, when judging emotional information, attention is directed more deeply and demands for higher-order cognition, including working memory, are greater. We have revealed for the first time the specific neural basis for emotional judgments based on vocal cues compared to that for gender judgments based on vocal cues.

DOI： 10.3389/fnhum.2023.1160392

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Springer Science and Business Media LLC  

Abstract

According to the operational diagnostic criteria, psychiatric disorders such as schizophrenia (SZ), bipolar disorder (BD), major depressive disorder (MDD), and autism spectrum disorder (ASD) are classified based on symptoms. While its cluster of symptoms defines each of these psychiatric disorders, there is also an overlap in symptoms between the disorders. We hypothesized that there are also similarities and differences in cortical structural neuroimaging features among these psychiatric disorders. T1-weighted magnetic resonance imaging scans were performed for 5,549 subjects recruited from 14 sites. Effect sizes were determined using a linear regression model within each protocol, and these effect sizes were meta-analyzed. The similarity of the differences in cortical thickness and surface area of each disorder group was calculated using cosine similarity, which was calculated from the effect sizes of each cortical regions. The thinnest cortex was found in SZ, followed by BD and MDD. The cosine similarity values between disorders were 0.943 for SZ and BD, 0.959 for SZ and MDD, and 0.943 for BD and MDD, which indicated that a common pattern of cortical thickness alterations was found among SZ, BD, and MDD. Additionally, a generally smaller cortical surface area was found in SZ and MDD than in BD, and the effect was larger in SZ. The cosine similarity values between disorders were 0.945 for SZ and MDD, 0.867 for SZ and ASD, and 0.811 for MDD and ASD, which indicated a common pattern of cortical surface area alterations among SZ, MDD, and ASD. Patterns of alterations in cortical thickness and surface area were revealed in the four major psychiatric disorders. To our knowledge, this is the first report of a cross-disorder analysis conducted on four major psychiatric disorders. Cross-disorder brain imaging research can help to advance our understanding of the pathogenesis of psychiatric disorders and common symptoms.

DOI： 10.1038/s41380-023-02224-7

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その他リンク： https://www.nature.com/articles/s41380-023-02224-7

担当区分：責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1186/s40359-023-01281-5

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その他リンク： https://link.springer.com/article/10.1186/s40359-023-01281-5/fulltext.html

掲載種別：研究論文（学術雑誌）   出版者・発行元：Springer Science and Business Media LLC  

Abstract

Differential diagnosis is sometimes difficult in practical psychiatric settings, in terms of using the current diagnostic system based on presenting symptoms and signs. The creation of a novel diagnostic system using objective biomarkers is expected to take place. Neuroimaging studies and others reported that subcortical brain structures are the hubs for various psycho-behavioral functions, while there are so far no neuroimaging data-driven clinical criteria overcoming limitations of the current diagnostic system, which would reflect cognitive/social functioning. Prior to the main analysis, we conducted a large-scale multisite study of subcortical volumetric and lateralization alterations in schizophrenia, bipolar disorder, major depressive disorder, and autism spectrum disorder using T1-weighted images of 5604 subjects (3078 controls and 2526 patients). We demonstrated larger lateral ventricles volume in schizophrenia, bipolar disorder, and major depressive disorder, smaller hippocampus volume in schizophrenia and bipolar disorder, and schizophrenia-specific smaller amygdala, thalamus, and accumbens volumes and larger caudate, putamen, and pallidum volumes. In addition, we observed a leftward alteration of lateralization for pallidum volume specifically in schizophrenia. Moreover, as our main objective, we clustered the 5,604 subjects based on subcortical volumes, and explored whether data-driven clustering results can explain cognitive/social functioning in the subcohorts. We showed a four-biotype classification, namely extremely (Brain Biotype [BB] 1) and moderately smaller limbic regions (BB2), larger basal ganglia (BB3), and normal volumes (BB4), being associated with cognitive/social functioning. Specifically, BB1 and BB2–3 were associated with severe and mild cognitive/social impairment, respectively, while BB4 was characterized by normal cognitive/social functioning. Our results may lead to the future creation of novel biological data-driven psychiatric diagnostic criteria, which may be expected to be useful for prediction or therapeutic selection.

DOI： 10.1038/s41380-023-02141-9

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その他リンク： https://www.nature.com/articles/s41380-023-02141-9

記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本心身医学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Royal College of Psychiatrists  

Background

Cognitive impairment is common in people with mental disorders, leading to transdiagnostic classification based on cognitive characteristics. However, few studies have used this approach for intellectual abilities and functional outcomes.

Aims

The present study aimed to classify people with mental disorders based on intellectual abilities and functional outcomes in a data-driven manner.

Method

Seven hundred and forty-nine patients diagnosed with schizophrenia, bipolar disorder, major depression disorder or autism spectrum disorder and 1030 healthy control subjects were recruited from facilities in various regions of Japan. Two independent k-means cluster analyses were performed. First, intelligence variables (current estimated IQ, premorbid IQ, and IQ discrepancy) were included. Second, number of work hours per week was included instead of premorbid IQ.

Results

Four clusters were identified in the two analyses. These clusters were specifically characterised in terms of IQ discrepancy in the first cluster analysis, whereas the work variable was the most salient feature in the second cluster analysis. Distributions of clinical diagnoses in the two cluster analyses showed that all diagnoses were unevenly represented across the clusters.

Conclusions

Intellectual abilities and work outcomes are effective classifiers in transdiagnostic approaches. The results of our study also suggest the importance of diagnosis-specific strategies to support functional recovery in people with mental disorders.

DOI： 10.1192/bjo.2022.50

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記述言語：日本語   出版者・発行元：(国研)国立精神・神経医療研究センター精神保健研究所  

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記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

The underlying pathologies of psychiatric disorders, which cause substantial personal and social losses, remain unknown, and their elucidation is an urgent issue. To clarify the core pathological mechanisms underlying psychiatric disorders, in addition to laboratory-based research that incorporates the latest findings, it is necessary to conduct large-sample-size research and verify reproducibility. For this purpose, it is critical to conduct multicenter collaborative research across various fields, such as psychiatry, neuroscience, molecular biology, genomics, neuroimaging, cognitive science, neurophysiology, psychology, and pharmacology. Moreover, collaborative research plays an important role in the development of young researchers. In this respect, the Enhancing Neuroimaging Genetics through Meta-Analysis (ENIGMA) consortium and Cognitive Genetics Collaborative Research Organization (COCORO) have played important roles. In this review, we first overview the importance of multicenter collaborative research and our target psychiatric disorders. Then, we introduce research findings on the pathophysiology of psychiatric disorders from neurocognitive, neurophysiological, neuroimaging, genetic, and basic neuroscience perspectives, focusing mainly on the findings obtained by COCORO. It is our hope that multicenter collaborative research will contribute to the elucidation of the pathological basis of psychiatric disorders.

DOI： 10.1111/pcn.13311

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Medical Association of Nippon Medical School  

BACKGROUND: Modafinil improves wakefulness and attention, is approved in Japan for treatment of narcolepsy, and was reported to be effective for attention-deficit/hyperactivity disorder. However, it was reported to induce emotional instability, including mania, depression, and suicidal ideation. Such side effects may be related to changes in cognitive behavior caused by the effects of modafinil on emotional recognition. However, the effects of modafinil on the neural basis of emotional processing have not been fully verified. We used functional magnetic resonance imaging to investigate the effects of modafinil on the neural basis of auditory emotional processing. METHODS: This study adopted a placebo-controlled within-subject crossover design. Data from 14 participants were analyzed. The effects of modafinil on cerebral activation and task performance during an emotional judgement task were analyzed. RESULTS: Task accuracy decreased significantly and response time of emotional judgement was significantly delayed by modafinil, as compared with placebo. Right thalamic activation in auditory emotional processing was significantly less in the modafinil condition than in the placebo condition. In addition, reduction of right thalamic activation by modafinil was positively correlated with accuracy of emotional judgement. CONCLUSIONS: Our findings suggest that modafinil acts on the right thalamus and changes behavior and brain function associated with auditory emotional processing. These results indicate that modafinil might change emotional recognition by reducing emotional activation related to social communication.

DOI： 10.1272/jnms.JNMS.2021_88-607

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記述言語：日本語   出版者・発行元：(一社)日本総合病院精神医学会  

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掲載種別：研究論文（学術雑誌）   出版者・発行元：Wiley  

DOI： 10.1111/pcn.13208

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その他リンク： https://onlinelibrary.wiley.com/doi/full-xml/10.1111/pcn.13208

掲載種別：研究論文（学術雑誌）   出版者・発行元：Elsevier BV  

DOI： 10.1016/j.neulet.2021.135716

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Informa {UK} Limited  

DOI： 10.2147/ppa.s204465

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Elsevier B.V.  

Background: Previous functional neuroimaging studies of depression have demonstrated frontotemporal dysfunction, including the dorsolateral prefrontal cortex, while patients perform working memory and language comprehension tasks. Recent near-infrared spectroscopy (NIRS) studies have shown frontotemporal hypofunction in depression by verbal fluency task, but the regions of impairment affecting respective depressive symptoms still remain unclear. We investigated frontotemporal function during word production task in depression with multi-channel NIRS. Further, we aimed to clarify whether any depressive symptoms affect frontotemporal dysfunction. Methods: One hundred seventy-seven major depressive patients and 50 healthy control volunteers participated in this study. Their cerebral activations were compared during verbal fluency task. Results: Although performance was not significantly different, hypoactivation in the bilateral frontotemporal regions was significantly observed in depressed patients, compared with controls. Left lateral frontotemporal activation was significantly reduced in the group with mandatory symptom, which is depressed mood, or loss of interest or pleasure, compared with the group that still has residual depressive symptoms in spite MDD having been remitted. Limitation: the MDD group had significantly higher age and education level than the controls. Conclusions Our findings indicate hypofunction of the bilateral frontotemporal regions in depression during verbal fluency task. Further, hypofunction of these regions in the left hemisphere by this task could reflect whether the subjects recovered from depressed mood, or loss of interest or pleasure.

DOI： 10.1016/j.jad.2018.01.010

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記述言語：日本語   出版者・発行元：(一社)日本総合病院精神医学会  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：BMJ PUBLISHING GROUP  

DOI： 10.1136/jnnp-2017-BNPA.55

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：BMJ PUBLISHING GROUP  

DOI： 10.1136/jnnp-2017-BNPA.80

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.dadm.2017.08.002

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記述言語：日本語   出版者・発行元：(一社)日本社会精神医学会  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：OXFORD UNIV PRESS  

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記述言語：日本語   出版者・発行元：(一社)日本社会精神医学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：FRONTIERS RESEARCH FOUNDATION  

Recent neuroimaging studies have demonstrated that Contactin-associated protein-like2 (CNTNAP2) polymorphisms affect left-hemispheric function of language processing in healthy individuals, but no study has investigated the influence of these polymorphisms on right-hemispheric function involved in human voice perception. Further, although recent reports suggest that determination of handedness is influenced by genetic effect, the interaction effect between handedness and CNTNAP2 polymorphisms for brain activity in human voice perception and language processing has not been revealed. We aimed to investigate the interaction effect of handedness and CNTNAP2 polymorphisms in respect to brain function for human voice perception and language processing in healthy individuals. Brain function of 108 healthy volunteers (74 right-handed and 34 non-right-handed) was examined while they were passively listening to reverse sentences (rSEN), identifiable non-vocal sounds (SND), and sentences (SEN). Full factorial design analysis was calculated by using three factors: (1) rs7794745 (A/A or A/T), (2) rs2710102 [G/G or A carrier (A/G and A/A)], and (3) voice-specific response (rSEN or SND). The main effect of rs7794745 (A/A or A/T) was significantly revealed at the right middle frontal gyrus (MFG) and bilateral superior temporal gyrus (STG). This result suggests that rs7794745 genotype affects voice-specific brain function. Furthermore, interaction effect was significantly observed among MFG-STG activations by human voice perception, rs7794745 (A/A or A/T), and handedness. These results suggest that CNTNAP2 polymorphisms could be one of the important factors in the neural development related to vocal communication and language processing in both right-handed and non-right-handed healthy individuals.

DOI： 10.3389/fnbeh.2015.00087

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.3389/fnhum.2013.00221

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Frontiers Research Foundation  

DOI： 10.3389/fpsyg.2013.00105

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記述言語：英語   掲載種別：研究論文（研究会，シンポジウム資料等）   出版者・発行元：MEDICAL ASSOC NIPPON MEDICAL SCH  

DOI： 10.1272/jnms.79.318

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ELSEVIER IRELAND LTD  

Comprehending conversation in a crowd requires appropriate orienting and sustainment of auditory attention to and discrimination of the target speaker. While a multitude of cognitive functions such as voice perception and language processing work in concert to subserve this ability, it is still unclear which cognitive components critically determine successful discrimination of speech sounds under constantly changing auditory conditions. To investigate this, we present a functional magnetic resonance imaging (fMRI) study of changes in cerebral activities associated with varying challenge levels of speech discrimination. Subjects participated in a diotic listening paradigm that presented them with two news stories read simultaneously but independently by a target speaker and a distracting speaker of incongruent or congruent sex. We found that the voice of distracter of congruent rather than incongruent sex made the listening more challenging, resulting in enhanced activities mainly in the left temporal and frontal gyri. Further, the activities at the left inferior, left anterior superior and right superior loci in the temporal gyrus were shown to be significantly correlated with accuracy of the discrimination performance. The present results suggest that the subregions of bilateral temporal gyri play a key role in the successful discrimination of speech under constantly changing auditory conditions as encountered in daily life. (C) 2010 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.

DOI： 10.1016/j.neures.2010.02.006

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：OXFORD UNIV PRESS  

Exercise and sports are increasingly being implemented in the management of schizophrenia. The process of action perception is as important as that of motor execution for learning and acquiring new skills. Recent studies have suggested that body-selective extrastriate body area (EBA) in the posterior temporal-occipital cortex is involved not only in static visual perception of body parts but also in the planning, imagination, and execution of actions. However, functional abnormality of the EBA in schizophrenia has yet to be investigated. Using functional magnetic resonance imaging (fMRI) with a task designed to activate the EBA by sports-related actions, we aimed to elucidate functional abnormality of the EBA during observation of sports-related actions in patients with schizophrenia. Twelve schizophrenia patients and 12 age-sex-matched control participants participated in the study. Using sports-related motions as visual stimuli, we examined brain activations during observation of context-congruent actions relative to context-incongruent actions by fMRI. Compared with controls, the patients with schizophrenia demonstrated diminished activation in the EBA during observation of sports-related context-congruent actions. Furthermore, the EBA activation in patients was negatively correlated with the severity of negative and general psychopathology symptoms measured by the Positive and Negative Syndrome Scale. Dysfunction of the EBA might reflect a difficulty in representing dynamic aspects of human actions and possibly lead to impairments of simulation, learning, and execution of actions in schizophrenia.

DOI： 10.1093/schbul/sbn132

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：JOHN WILEY & SONS LTD  

To characterize gastrointestinal cancer survivors' ability to psychologically adjust, we examined the relationship between psychological characteristics (quality of life (QOL), anxiety, depression, and post-traumatic stress symptoms) and self-efficacy (perceived ability to initiate coping strategies). Forty-seven subjects (32 males and 15 females) were recruited from outpatient clinics or general surgical wards after readmission for therapy unrelated to cancer. All had undergone treatment for gastrointestinal cancer. Japanese version of the Functional Assessment of Cancer Therapy-General (FACT-G), Japanese version of Hospital Anxiety and Depression Scale (HADS), Japanese version of Impact of Event Scale-Revised (IES-R), and The Self-Efficacy Scale for Advanced Cancer (SEAC) were administered. Correlation analyses revealed a statistically significant positive correlation between three subscales of SEAC and QOL (total of FACT-G value) and a significant negative correlation between anxiety, depression (the total of HADS value), post-traumatic stress symptoms (the total of IES-R value), and SEAC. In multiple regression analysis, the influence from Affect Regulation Efficacy (subscale of SEAC) was the largest in anxiety and post-traumatic stress symptoms while the influence from Activities of Daily Living Efficacy (subscale of SEAC) was the largest in QOL and depression. Our findings revealed that a strong relationship between self-efficacy and psychological adjustment, and that there should be several psychological intervention forms performed at various treatment stages to enhance self-efficacy in this population of gastrointestinal cancer survivors. These results also imply the effectiveness of interventions on self-efficacy for gastrointestinal cancer survivors and the influence of psychological factors such as QOL, anxiety, depression, and post-traumatic stress symptoms. Copyright (C) 2009 John Wiley & Sons, Ltd.

DOI： 10.1002/pon.1531

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1272/jnms.77.188

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

We have developed a new educational/clinical ontology named the "Haghighi-Koeda Mood Disorder Ontology", which involves both medical and psychological approaches for mood disorders in order to promote the exchange of information between psychiatrists and psychologists. Data was gathered from more than 5000 articles published in journals and websites specialized in life science. We evaluated and selected articles which were related to 4 main categories of mood disorders. Using Protéǵ 3.4 beta, information related to mood disorders was classified by class/subclass tree in an ontological structure. Then we developed a web-based interface system on the internet enabling the implementation of the ontology. In addition, we have designed an online scale for automated diagnosis of mood disorder. For evaluating experiments, we compare this ontology with "Decisionbase™" of which content deals with mood disorders. Evaluation was in accordance with our selected criteria via the AHP (Analysis of Hierarchical Processing) method. The results demonstrated the noteworthy superiority of our ontology. We believe that combining knowledge of medical science with that in psychological fields is a key to improving the quality of diagnosis and promoting appropriate treaTMent in all psychiatric disorders.

DOI： 10.11480/jmds.560101

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ELSEVIER SCIENCE INC  

Background: Peripheral benzodiazepine receptor (PBR) in the brain of Alzheimer's disease (AD) patients has been discussed in relation to the role of gliosis in AD. The PBR was shown to have the ability to reflect activated glial cells, including microglia. The role of activated microglia in AD is all important topic in the pathophysiology of AD. The aim of this study was to quantify PBR in AD brain with a new high-sensitive PBR ligand, [C-11]DAA1106.
Methods: Positron emission tomography (PET) scans with [C-11]DAA1106, a potent and selective ligand for PBR, were performed on 10 patients with AD and 10 age-matched control subjects. All patients had mild to moderate dementia. Duration of illness was 1-3 years at the time of the scans. The PBR binding in the regions of interest was quantified by binding potential (BP) obtained from compartmental model analysis with plasma input function.
Results: Mean BP was increased in the brain of AD patients compared with control subjects in all measured regions. Statistical significance reached across many of the regions examined, including dorsal and medial prefrontal cortex, lateral temporal cortex, parietal cortex, occipital cortex, anterior cingulate cortex, striatum, and cerebellum.
Conclusions: The broad increase of PBR binding measured with [C-11]DAA1106 in the brain of AD patients suggests a widespread existence of cellular reactions with PBR in relatively early-stage AD.

DOI： 10.1016/j.biopsych.2008.04.021

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：OXFORD UNIV PRESS INC  

Neuroimaging studies have demonstrated that the brain regions implicated in moral cognition. However, those studies have focused exclusively on violation of social norms and negative moral emotions, and very little effort has been expended on the investigation of positive reactions to moral excellence. It remains unclear whether the brain regions implicated in moral cognition have specific roles in processing moral violation or, more generally, process human morality per se. Using functional magnetic resonance imaging, brain activations during evaluation of moral beauty and depravity were investigated. Praiseworthiness for moral beauty was associated with activation in the orbitofrontal cortex, whereas blameworthiness for moral depravity was related to the posterior superior temporal sulcus. Humans might have developed different neurocognitive systems for evaluating blameworthiness and praiseworthiness. The central process of moral beauty evaluation might be related to that of aesthetic evaluation. Our finding might contribute to a better understanding of human morality.

DOI： 10.1093/cercor/bhm214

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：BLACKWELL PUBLISHING  

Aim: Neuroimaging studies on biological motion have established the view that the posterior superior temporal sulcus (pSTS) is involved in detecting intention of others. Those studies have consistently reported other regions such as body-selective extrastriate body area (EBA) and motion-sensitive middle temporal, in close proximity to pSTS. Whether EBA responds only to static body parts or has a more extended role as part of a system for inferring intention of others has remained an elusive issue. The aim of the present study was to investigate the role of EBA in processing goal-directed actions.
Methods: Twelve healthy volunteers participated in the present study. Using sports-related motions as visual stimuli, brain activations were examined during observation of goal-directed actions and non-goal-directed actions on functional magnetic resonance imaging.
Results: Compared to non-goal-directed actions, goal-directed actions produced greater activations in EBA along with the mirror neuron system.
Conclusions: EBA might contribute to understanding others' actions by representing the dynamic aspects of human motions.

DOI： 10.1111/j.1440-1819.2008.01757.x

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：OXFORD UNIV PRESS INC  

We aimed to investigate the neural correlates associated with judgments of a positive self-conscious emotion, pride, and elucidate the difference between pride and a basic positive emotion, joy, at the neural basis level using functional magnetic resonance imaging. Study of the neural basis associated with pride might contribute to a better understanding of the pride-related behaviors observed in neuropsychiatric disorders. Sixteen healthy volunteers were studied. The participants read sentences expressing joy or pride contents during the scans. Pride conditions activated the right posterior superior temporal sulcus and left temporal pole, the regions implicated in the neural substrate of social cognition or theory of mind. However, against our prediction, we did not find brain activation in the medial prefrontal cortex, a region responsible for inferring others' intention or self-reflection. Joy condition produced activations in the ventral striatum and insula/operculum, the key nodes of processing of hedonic or appetitive stimuli. Our results support the idea that pride is a self-conscious emotion, requiring the ability to detect the intention of others. At the same time, judgment of pride might require less self-reflection compared with those of negative self-conscious emotions such as guilt or embarrassment.

DOI： 10.1093/cercor/bhm120

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：IEEE COMPUTER SOC  

We developed a method using the Analytic Hierarchy Process (AHP) to evaluate the psychological factors of family caregivers of patients with dementia. Further, the family caregivers were questioned on their policy pertaining to the living place of the patients: at their home, nursing home, or hospital. We made inquiries of sixty-two families, resulting in twenty-eight desiring care at home, twenty desiring a nursing home, and fourteen desiring care at a hospital. The more the quality of life was valued, the more the family preferred care at home (r = 0.42). In contrast, the higher the concern regarding the burden of care was, the more the family preferred hospitalization (r = 0.49). This approach was useful in formulating decisions regarding a care policy for older people. Assessment of the psychological factors of family caregivers may provide clues for solving problems in decisions regarding care policy.

DOI： 10.1109/BMEI.2008.355

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：SCHATTAUER GMBH-VERLAG MEDIZIN NATURWISSENSCHAFTEN  

Objectives: In our previous functional magnetic resonance imaging (fMRI) study, we determined that there was distinct left hemispheric dominance for lexical-semantic processing without the influence of human voice perception in right-handed healthy subjects. However, the degree of right-handedness in the right-handed subjects ranged from 52 to 100 according to the Edinburgh Handedness Inventory (EHI) score. In the present study, we aimed to clarify the correlation between the degree of right-handedness and language dominance in the fronto-temporo-parietal cortices by examining cerebral activation for lexical-semantic processing.
Methods: Twenty-seven normal right-handed healthy subjects were scanned by fMRI while listening to sentences (SEN), reverse sentences (rSEN), and identifiable non-vocal sounds (SND). Fronto-temporo-parietal activation was observed in the left hemisphere under the SEN - rSEN contrast, which included lexical-semantic processing without the influence of human voice perception. Laterality index was calculated as LI = (L-R)/(L + R) x 100, L: left, R: right.
Results: Laterality Index in the fronto-temporo-parietal cortices did not correlate with the degree of right-handedness in EHI score.
Conclusions: The present study indicated that the degree of right-handedness from 52 to 100 in EHI score had no effect on the degree of left hemispheric dominance for lexical-semantic processing in right-handed healthy subjects.

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ACADEMIC PRESS INC ELSEVIER SCIENCE  

Jealousy-related behaviors such as intimate partner violence and morbid jealousy are more common in males. Principal questionnaire studies suggest that men and women have different modules to process cues of sexual and emotional infidelity. We aimed to elucidate the neural response to sentences depicting sexual and emotional infidelity in men and women using functional magnetic resonance imaging. Although there was no sex difference in the self-rating score of jealousy for sexual and emotional infidelity, men and women showed different brain activation patterns in response to the two types of infidelity. During jealous conditions, men demonstrated greater activation than women in the brain regions involved in sexual/aggressive behaviors such as the amygdala and hypothalamus. In contrast, women demonstrated greater activation in the posterior superior temporal sulcus. Our fMRI results are in favor of the notion that men and women have different neuropsychological modules to process sexual and emotional infidelity. Our findings might contribute to a better understanding of the neural basis of the jealousy-related behaviors predominantly observed in males. (c) 2006 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.neuroimage.2006.05.049

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ELSEVIER SCIENCE INC  

Background: Neuroimaging studies have demonstrated either reduced left-lateralized activation or reversed language dominance in schizophrenia. These findings of left hemispheric dysfunction could be attributed to language processing tasks, which activate mainly left hemispheric function. Recent functional magnetic resonance imaging studies reported right-lateralized temporal activation by human voice perception, but few studies have investigated activation by human voice in schizophrenia. We aimed to clarify the cerebral function of language processing in schizophrenia patients by considering cerebral activation of human voice perception.
Methods: Fourteen right-handed schizophrenia patients and 14 right-handed controls with matched handedness, sex, and education level were scanned by functional magnetic resonance imaging while listening to sentences (SEN), reverse sentences (rSEN), and identifiable non-vocal sounds (SND).
Results: Under the SEN-SND and SEN-rSEN contrasts including language processing, patients showed less activation of the left hemisphere than controls in the language-related fronto-tempo-parietal region, hippocampus, thalamus and cingulate gyrus. Under the rSEN-SND contrast including human voice perception, patients showed less activation than controls in the right-lateralized temporal cortices and bilateral posterior cingulate.
Conclusions: Our results indicate that schizophrenia patients have impairment of broader bilateral cortical-subcortical regions related to both the semantic network in the left hemisphere and the voice-specific network in the right hemisphere.

DOI： 10.1016/j.biopsych.2006.01.013

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ACADEMIC PRESS INC ELSEVIER SCIENCE  

Recent neuroimaging studies have demonstrated abnormal central emotional processing in psychiatric disorders. The dopamine (DA) systems and serotonin (5-HT) systems are the main target of psychopharmacotherapy. DA D-2 receptor antagonists and selective serotonin reuptake inhibitors (SSRIs) are widely used in psychiatric practice. Investigating the effects of these drugs on emotional processing should lead to a better understanding of the pathophysiology and pharmacotherapy of neuropsychiatric disorders. We aimed to examine effects of dopaminergic and serotonergic manipulation on neural responses to unpleasant pictures in healthy volunteers using pharmacological fMRI.
Thirteen healthy male subjects participated in a single-blind, randomized, placebo-controlled design study. Each subject participated in three fMRI sessions. In each session, participants were orally administered either 25 mg of sultopride or 50 mg of fluvoxamine or placebo prior to scanning, and neural responses to unpleasant and neutral pictures were recorded.
Despite no significant differences being found in the subjective ratings of affective pictures across three sessions, compared to placebo, acute treatments of DA D2 receptor antagonists and SSRIs commonly attenuated the amygdala activity, although both treatments had slightly different modulatory effects on other components of the neural circuit of emotional processing. This study has shown that even acute treatment of drugs that manipulate neurotransmitter systems could affect brain activation associated with emotional processing in human brain. At the same time, our findings suggest that pharmacological fMRI could be a powerful tool for investigating the neurophysiological properties of drugs targeting neuropsychiatric disorders. (C) 2005 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.neuroimage.2005.05.039

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ACADEMIC PRESS INC ELSEVIER SCIENCE  

We aimed to investigate the neural substrates associated with evaluative process of moral emotions. Using functional magnetic resonance imaging (fMRI), we examined the similarities and differences between evaluative process of guilt and that of embarrassment at the neural basis level. Study of the neural basis of judgments of moral emotions might contribute to a better understanding of the amoral behavior observed in neurological and psychiatric disorders. Nineteen healthy volunteers were studied. The participants read sentences carrying neutral, guilty, or embarrassing contents during the scans. Both guilt and embarrassment conditions commonly activated the medial prefrontal cortex (MPFC), left posterior superior temporal sulcus (STS), and visual cortex. Compared to guilt condition, embarrassment condition produced greater activation in the right temporal cortex (anterior), bilateral hippocampus, and visual cortex. Most of these regions have been implicated in the neural substrate of social cognition or Theory of Mind (ToM). Our results support the idea that both are self-conscious emotions, which are social emotions requiring the ability to represent the mental states of others. At the same time, our functional fMRI data are in favor of the notion that evaluative process of embarrassment might be a more complex process than that of guilt. (C) 2004 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.neuroimage.2004.07.054

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ACADEMIC PRESS INC ELSEVIER SCIENCE  

Although emotional dysfunction is considered a fundamental symptom of schizophrenia, studies investigating the neural basis of emotional dysfunction in schizophrenia are few. Using functional magnetic resonance imaging (fMRI) and a task viewing affective pictures, we aimed to examine automatic emotional response and to elucidate the neural basis of impaired emotional processing in schizophrenia. Fifteen healthy volunteers and 15 schizophrenics were studied. During the scans, the subjects were instructed to indicate how each of the presented pictures made them feel. Whole brain activities in response to the affective pictures were measured by fMRI. Controls recruited the neural circuit including amygdaloid-hippocampal region, prefrontal cortex, thalamus, basal ganglia, cerebellum, midbrain, and visual cortex while viewing unpleasant pictures. Despite an equal behavioral result to controls, the patients showed less activation in the components of the circuit (right amygdala, bilateral hippocampal region, medial prefrontal cortex (MPFC), basal ganglia, thalamus, cerebellum, midbrain, and visual cortex). This study demonstrated functional abnormalities in the neural circuit of emotional processing in schizophrenia. In particular, decreased activation in the right amygdala and MPFC appears to be an important finding related to dysfunctional emotional behavior in schizophrenia. (C) 2004 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.neuroimage.2004.03.028

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記述言語：日本語   出版者・発行元：(国研)国立精神・神経医療研究センター精神保健研究所  

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記述言語：日本語   出版者・発行元：(国研)国立精神・神経医療研究センター精神保健研究所  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

DOI： 10.1272/manms.18.72

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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担当区分：筆頭著者   記述言語：日本語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

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記述言語：日本語   出版者・発行元：国際生命情報科学会 ISLIS本部  

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記述言語：日本語   出版者・発行元：(株)最新医学社  

近年、脳機能画像を用いた統合失調症の臨床症状の評価や抗精神病薬の薬効評価が行われている。本稿では、認知行動関連・脳機能画像研究と分子イメージング研究に分け、前者については情動や言語課題を用いた機能的磁気共鳴画像(fMRI)研究や安静時fMRI研究、後者については脳神経伝達機能やトランスポーターに特異的なトレーサーを用いたポジトロン断層撮影(PET)に関する研究を中心に、研究手法の概略と実際の研究内容の紹介を行った。(著者抄録)

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記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：英語   出版者・発行元：国際生命情報科学会  

背景：近赤外線分光法（NIRS）は、気分障害の病態生理を評価するのに簡便な臨床検査方法である。修正型電気けいれん療法（m-ECT）は、重症うつ病や治療抵抗性うつ病の治療法の1 つとして用いられているが、脳機能に及ぼすm-ECT の効果についてはほとんど研究されていない。目的：我々はNIRS を用いて気分障害に対するm-ECT の治療効果を検討した。方法：倫理委員会に承認された方法に基づいて、13 例の気分障害患者がNIRS を用いてmECT 前後において言語流暢性課題中の脳機能を評価した。研究内容を十分説明し、全ての被験者から書面同意を得た。先行のNIRS 研究（Takizawa et.al, 2014）に前頭葉の酸素化ヘモグロビンの平均パターンよって、6 例のうつ病パターンと7 例の躁うつ病パターンに分類された。結果： 13 例すべての被験者のうつ状態がm-ECT 後に改善された。側頭葉活性は、うつ病パターンと躁うつ病パターンの両方の患者でm-ECT 前に比べてmECT 後に有意に増加した。前頭葉活性は、躁うつ病パターンがうつ病パターンと比較してm-ECT 後に大幅に改善された。 躁うつ病パターンでは、両側中前頭領域および左眼窩前頭領域でm-ECT 前に比べてm-ECT 後に有意に増加した。結論：我々の結果は、m-ECT 後のうつ状態の改善に伴って、NIRS による言語流暢性課題中の側頭葉活性は、うつ病と躁うつ病パターンの両方の患者で増加するが、前頭葉活性は躁うつ病パターンの患者のみで増加することが示唆された。

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記述言語：日本語  

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記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：日本語   出版者・発行元：日本生物学的精神医学会・日本神経精神薬理学会  

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記述言語：日本語   出版者・発行元：日本生物学的精神医学会・日本神経精神薬理学会  

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記述言語：日本語   出版者・発行元：日本慢性疼痛学会  

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記述言語：日本語  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(株)アークメディア  

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記述言語：日本語   出版者・発行元：(一社)日本総合病院精神医学会  

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記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本総合病院精神医学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：BMJ PUBLISHING GROUP  

DOI： 10.1136/jnnp-2015-311750.64

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記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：SAGE PUBLICATIONS LTD  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：KARGER  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：BMJ PUBLISHING GROUP  

DOI： 10.1136/jnnp-2012-303538.27

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記述言語：英語   出版者・発行元：NATURE PUBLISHING GROUP  

Weight gain has been identified as being responsible for increased morbidity and mortality rates of schizophrenia patients. For the management of weight gain, exercise is one of the most acknowledged interventions. At the same time, exercise and sports have been recognized for their positive impact on psychiatric symptoms of schizophrenia. However, the neurobiological basis for this remains poorly understood. We aimed to examine the effect of sports participation on weight gain, psychiatric symptoms and brain activation during sports observation in schizophrenia patients. Thirteen schizophrenia patients who participated in a 3-month program, including sports participation and 10 control schizophrenia patients were studied. In both groups, body mass index (BMI), Positive and Negative Syndrome Scale (PANSS), and brain activation during observation of sports-related actions measured by functional magnetic resonance imaging were accessed before and after a 3-month interval. BMI and general psychopathology scale of PANSS were significantly reduced in the program group but not in the control group after a 3-month interval. Compared with baseline, activation of the body-selective extrastriate body area (EBA) in the posterior temporal-occipital cortex during observation of sports-related actions was increased in the program group. In this group, increase in EBA activation was associated with improvement in the general psychopathology scale of PANSS. Sports participation had a positive effect not only on weight gain but also on psychiatric symptoms in schizophrenia. EBA might mediate these beneficial effects of sports participation. Our findings merit further investigation of neurobiological mechanisms underlying the therapeutic effect of sports for schizophrenia. Translational Psychiatry (2012) 2, e96; doi:10.1038/tp.2012.22; published online 20 March 2012

DOI： 10.1038/tp.2012.22

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：JAPANESE PHARMACOLOGICAL SOC  

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記述言語：日本語  

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記述言語：日本語  

DOI： 10.1272/manms.7.224

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記述言語：日本語   出版者・発行元：アークメディア  

CiNii Books

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記述言語：日本語   出版者・発行元：アークメディア  

CiNii Books

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：ELSEVIER IRELAND LTD  

DOI： 10.1016/j.neures.2011.07.754

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記述言語：日本語   出版者・発行元：(一社)日本臨床神経生理学会  

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記述言語：日本語   出版者・発行元：(一社)日本臨床神経生理学会  

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記述言語：日本語   出版者・発行元：(公社)日本精神神経学会  

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記述言語：日本語   出版者・発行元：アークメディア  

CiNii Books

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記述言語：日本語   出版者・発行元：アークメディア  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：ELSEVIER IRELAND LTD  

DOI： 10.1016/j.neures.2009.09.1351

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記述言語：日本語  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：B M J PUBLISHING GROUP  

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記述言語：日本語   出版者・発行元：アークメディア  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：B M J PUBLISHING GROUP  

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記述言語：日本語   出版者・発行元：日本医科大学医学会  

We report a case of anorexia nervosa with familial idiopathic basal ganglia calcification (IBGC, Fahr's disease). A 30-year-old woman with anorexia nervosa was brought to the Department of Critical Care Medicine because of severe weight loss and dehydration. Imaging studies revealed bilaterally symmetrical calcifications in the caudate nucleus, putamen, globus pallidus, and thalamus, and Fahr's disease was diagnosed. Fahr's disease sometimes has comorbid psychiatric conditions, such as schizophrenia and personality changes, but this is the first case of Fahr's disease with anorexia nervosa. This case illustrates the importance of comprehensive medical assessment for psychiatric patients admitted for the first time.<br>

DOI： 10.1272/manms.2.202

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記述言語：日本語   出版者・発行元：国立精神・神経センター  

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記述言語：日本語   出版者・発行元：(一社)日本臨床神経生理学会  

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記述言語：日本語   出版者・発行元：(一社)日本臨床神経生理学会  

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記述言語：日本語   出版者・発行元：厚生労働省精神・神経疾患研究班  

リスペリドン服用中の精神分裂病患者4例を対象とし,線条体外ドーパミンD2受容体占有率の経時的変化を調べた.又,精神分裂病患者13例と健康人13例を対象に,MRIを用いて視覚刺激による情動反応の評価を行った.リスペリドンでは血中濃度の減少に比し,大脳皮質ドーパミンD2受容体占有率の減少の程度は少なく,血中濃度が低下しても脳内では高い受容体占有率が維持されていた.分裂病群では,不快刺激に対する脳血流増加が低下し,分裂病における情動鈍麻やアンヘドニアに対応する所見と思われた

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開催年月日： 2024年6月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2024年5月

記述言語：英語   会議種別：口頭発表（一般）  

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開催年月日： 2023年11月

記述言語：日本語   会議種別：ポスター発表  

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開催年月日： 2023年11月

記述言語：日本語   会議種別：ポスター発表  

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開催年月日： 2023年9月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2022年11月

記述言語：日本語   会議種別：ポスター発表  

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開催年月日： 2022年11月

記述言語：日本語   会議種別：ポスター発表  

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開催年月日： 2022年10月

記述言語：日本語   会議種別：ポスター発表  

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開催年月日： 2021年11月 - 2021年12月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2021年7月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2019年6月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2019年6月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2019年6月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2019年6月

記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：英語   会議種別：ポスター発表  

開催地：Kings Place, London, UK  

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

開催地：松江テルサ、島根  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：英語   会議種別：シンポジウム・ワークショップ パネル（公募）  

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記述言語：英語   会議種別：シンポジウム・ワークショップ パネル（指名）  

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記述言語：英語   会議種別：ポスター発表  

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記述言語：英語   会議種別：公開講演，セミナー，チュートリアル，講習，講義等  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：日本語  

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記述言語：日本語   会議種別：口頭発表（一般）  

開催地：福岡国際会議場、福岡  

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記述言語：英語   会議種別：ポスター発表  

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記述言語：英語   会議種別：口頭発表（招待・特別）  

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記述言語：英語   会議種別：口頭発表（招待・特別）  

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記述言語：英語   会議種別：ポスター発表  

開催地：Geneva, Switzerland  

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記述言語：英語   会議種別：ポスター発表  

開催地：Vancouver Convention Centre, Canada  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：英語   会議種別：ポスター発表  

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記述言語：日本語   会議種別：口頭発表（一般）  

開催地：金沢歌劇座、金沢市、石川県  

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記述言語：日本語   会議種別：口頭発表（一般）  

開催地：金沢歌劇座、金沢市、石川県  

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記述言語：日本語   会議種別：シンポジウム・ワークショップ パネル（指名）  

開催地：千葉市文化センター  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：ポスター発表  

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記述言語：日本語   会議種別：口頭発表（一般）  

開催地：札幌コンベンションセンター、北海道  

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記述言語：日本語  

開催地：札幌コンベンションセンター、北海道  

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記述言語：英語   会議種別：シンポジウム・ワークショップ パネル（指名）  

開催地：China national convention center, Beijing, China  

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種別：講演会

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種別：講演会

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種別：セミナー・ワークショップ

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種別：講演会

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種別：講演会

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種別：講演会

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