Research Topics
| Tsuyoshi ArakiSummaryAffiliation: University of Tokyo Country: Japan Publications
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Detail Information
Publications
Auditory P300 latency prolongation with age in schizophrenia: gender and subcomponent effectsTsuyoshi Araki
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
Schizophr Res 88:217-21. 2006..Our findings may provide evidence for progressive change in the brain function in schizophrenia, and this change may be slower in female than male patients. P3b may serve as a more sensitive index for cognitive decline than P3a...- The effect of perospirone on auditory P300 in schizophrenia: a preliminary studyTsuyoshi Araki
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Japan
Prog Neuropsychopharmacol Biol Psychiatry 30:1083-90. 2006..These results suggest that clinical improvement in response to perospirone in some patients may, at least in part, be mediated through cognitive change indexed by P300 in chronic schizophrenia... - Brain electric activity for active inhibition of auditory irrelevant informationTsuyoshi Araki
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
Neurosci Lett 374:11-6. 2005..These results suggest that auditory selective attention process involves not only focusing attention on relevant information, but also inhibitory processing of irrelevant information mediated by the frontal cortex... - Association between lower P300 amplitude and smaller anterior cingulate cortex volume in patients with posttraumatic stress disorder: a study of victims of Tokyo subway sarin attackTsuyoshi Araki
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Tokyo 113 8655, Japan
Neuroimage 25:43-50. 2005..These results provide the first evidence that electrophysiological deficits of controlled attention observed in patients with PTSD may be linked to underlying brain morphological abnormalities... - Increased positive thought disorder with illness duration in patients with schizophreniaKeiko Maeda
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Bunkyo ku, Tokyo, Japan
Psychiatry Clin Neurosci 61:687-90. 2007..TDI scores were not associated with verbal memory or executive functioning. These results indicate an ongoing worsening of positive thought disorder through the course of illness in schizophrenia... - Perospirone in the treatment of schizophrenia: effect on verbal memory organizationTsuyoshi Araki
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
Prog Neuropsychopharmacol Biol Psychiatry 30:204-8. 2006..Negative symptoms and extrapyramidal side effects were also ameliorated after switching to perospirone. The distinct cognitive enhancement profile of perospirone may be attributable to its partial 5-HT1A agonist action... - Electrophysiological indices associated with social functioning outcome in schizophrenia: a 5-year follow-up studyKeiko Maeda
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
Neurosci Res 51:215-8. 2005..N2b amplitude, an electrophysiological index of orienting response, may be associated with longitudinal social functioning outcome in schizophrenia... - P300 amplitude over temporal regions in schizophreniaAkira Iwanami
Department of Neuropsychiatry, Faculty of Medicine, University of Tokyo, Japan
Eur Arch Psychiatry Clin Neurosci 252:1-7. 2002.... - Confirmation of a relationship between reduced auditory P300 amplitude and thought disorder in schizophreniaKenji Kirihara
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyoku, Tokyo 113 8655, Japan
Schizophr Res 80:197-201. 2005..These results further suggest that electrophysiological abnormalities of information processing may underlie positive thought disorder in schizophrenia... 
Phonological fluency is uniquely impaired in Japanese-speaking schizophrenia patients: confirmation studyMotomu Suga
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
Psychiatry Clin Neurosci 65:672-5. 2011....- Association Study between Auditory P3a/P3b Event-Related Potentials and Thought Disorder in SchizophreniaKenji Kirihara
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyoku, Tokyo, 113 8655, Japan
Brain Imaging Behav 3:277-83. 2009..These results suggest that specific electrophysiological abnormalities associated with context updating may underlie thought disorder in schizophrenia... - A multimodal approach to investigate biomarkers for psychosis in a clinical setting: The integrative neuroimaging studies in schizophrenia targeting for early intervention and prevention (IN-STEP) projectShinsuke Koike
Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo ku, Tokyo 113 8655, Japan Office for Mental Health Support, Division for Counseling and Support, The University of Tokyo, Bunkyo ku, Tokyo 113 0033, Japan Electronic address
Schizophr Res 143:116-24. 2013..0%, and 35.3% (at 6, 12, and 24months, respectively). Through this research project, we expect to clarify the pathophysiological features around the onset of psychosis and improve the prognosis of psychosis through clinical application... - [Biological study in schizophrenia]Kiyoto Kasai
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
Brain Nerve 64:109-18. 2012..Additionally, we present the preliminary findings of the clinical research in our outpatient unit, specialized for early intervention, at the University of Tokyo Hospital... - Different hemodynamic response patterns in the prefrontal cortical sub-regions according to the clinical stages of psychosisShinsuke Koike
Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo ku, Tokyo 113 8655, Japan
Schizophr Res 132:54-61. 2011..Multichannel near-infrared spectroscopy (NIRS), which can easily and noninvasively measure hemodynamics over the prefrontal cortex, is a candidate instrument for clinical use... - Smoking habits in Japanese patients with schizophreniaTakeyuki Mori
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
Psychiatry Res 120:207-9. 2003..Variables associated with smoking were also different from those reported in the Western literature. Different cultural backgrounds may underlie the differing results in Western and Japanese populations... - [Neuroanatomy and neurophysiology in schizophrenia]Kiyoto Kasai
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo
Seishin Shinkeigaku Zasshi 106:851-66. 2004..Finally, we described important issues, in terms of the infrastructure and system, which need to be improved in clinical psychiatry research in Japan... - Season of birth effect on personality in a general populationMamoru Tochigi
Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Japan
Neurosci Lett 365:120-3. 2004..Evaluation of cognitive functions and behaviors using other measures including event-related potentials and functional MRI may also help the interpretation of the present result... - Effects of corollary discharge on event-related potentials during selective attention task in healthy men and womenNoriko Kudo
Okanoya Laboratory, Department of Cognitive and Information Sciences, Graduate School of Humanities, Chiba University, 1 33 Yayoi cho, Inage Ku, Chiba 263 8522, Japan
Neurosci Res 48:59-64. 2004..These results suggest that the effect of corollary discharge on auditory ERPs is limited to the perceptual stage of information processing in healthy men and women... - Comparison between mismatch negativity amplitude and magnetic mismatch field strength in normal adultsNoriko Kudo
Department of Cognitive and Information Sciences, Graduate School of Humanities, Chiba University, Chiba, Japan
Biol Psychol 71:54-62. 2006..To further clarify the differential significance of recording MMN/MMF may be important to establish MMN/MMF as clinical indices of individual ability of preattentive stage of auditory processing...