Toshiaki Onitsuka

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. ncbi request reprint Differential characteristics of the middle latency auditory evoked magnetic responses to interstimulus intervals
    Toshiaki Onitsuka
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Clin Neurophysiol 114:1513-20. 2003
  2. pmc Gamma band neural synchronization deficits for auditory steady state responses in bipolar disorder patients
    Yuko Oda
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    PLoS ONE 7:e39955. 2012
  3. doi request reprint Altered face inversion effect and association between face N170 reduction and social dysfunction in patients with schizophrenia
    Tomoya Tsunoda
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Clin Neurophysiol 123:1762-8. 2012
  4. doi request reprint Reduced high and low frequency gamma synchronization in patients with chronic schizophrenia
    Rikako Tsuchimoto
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Schizophr Res 133:99-105. 2011
  5. doi request reprint Differentiation between bipolar disorder and schizophrenia revealed by neural oscillation to speech sounds: an MEG study
    Naoya Oribe
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka, Japan
    Bipolar Disord 12:804-12. 2010
  6. doi request reprint Auditory gating deficit to human voices in schizophrenia: a MEG study
    Yoji Hirano
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Schizophr Res 117:61-7. 2010
  7. doi request reprint Differentiation between major depressive disorder and bipolar disorder by auditory steady-state responses
    Shuichi Isomura
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    J Affect Disord 190:800-6. 2016
  8. doi request reprint Preattentive dysfunction in patients with bipolar disorder as revealed by the pitch-mismatch negativity: a magnetoencephalography (MEG) study
    Satomi Shimano
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Bipolar Disord 16:592-9. 2014
  9. doi request reprint Review of neurophysiological findings in patients with schizophrenia
    Toshiaki Onitsuka
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Psychiatry Clin Neurosci 67:461-70. 2013
  10. doi request reprint Decreased spatial frequency sensitivities for processing faces in male patients with chronic schizophrenia
    Choji Obayashi
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka, Japan
    Clin Neurophysiol 120:1525-33. 2009

Collaborators

Detail Information

Publications25

  1. ncbi request reprint Differential characteristics of the middle latency auditory evoked magnetic responses to interstimulus intervals
    Toshiaki Onitsuka
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Clin Neurophysiol 114:1513-20. 2003
    ....
  2. pmc Gamma band neural synchronization deficits for auditory steady state responses in bipolar disorder patients
    Yuko Oda
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    PLoS ONE 7:e39955. 2012
    ..BD patients are characterized by deficits in gamma band oscillations, which may be associated with GABA inhibitory interneuronal activity dysfunction...
  3. doi request reprint Altered face inversion effect and association between face N170 reduction and social dysfunction in patients with schizophrenia
    Tomoya Tsunoda
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Clin Neurophysiol 123:1762-8. 2012
    ..This face inversion effect (FIE) presumably reflects a disruption of face-specific configuration processing. The present study investigated FIE and the associations between social functioning and N170 in patients with schizophrenia...
  4. doi request reprint Reduced high and low frequency gamma synchronization in patients with chronic schizophrenia
    Rikako Tsuchimoto
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Schizophr Res 133:99-105. 2011
    ..The current study highlights the high and low frequency gamma abnormalities and provides clear evidence that schizophrenia is characterized by abnormalities in neural circuitry...
  5. doi request reprint Differentiation between bipolar disorder and schizophrenia revealed by neural oscillation to speech sounds: an MEG study
    Naoya Oribe
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka, Japan
    Bipolar Disord 12:804-12. 2010
    ..The current study tested the hypothesis that the eNO to speech sounds could be differentiated between BP and SZ patients...
  6. doi request reprint Auditory gating deficit to human voices in schizophrenia: a MEG study
    Yoji Hirano
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Schizophr Res 117:61-7. 2010
    ..We examined the functioning of auditory gating and its relationship with the clinical symptoms in schizophrenia...
  7. doi request reprint Differentiation between major depressive disorder and bipolar disorder by auditory steady-state responses
    Shuichi Isomura
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    J Affect Disord 190:800-6. 2016
    ..The aim of this study was to evaluate whether ASSRs in MDD subjects differed from those in BD subjects or normal controls (NC)...
  8. doi request reprint Preattentive dysfunction in patients with bipolar disorder as revealed by the pitch-mismatch negativity: a magnetoencephalography (MEG) study
    Satomi Shimano
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Bipolar Disord 16:592-9. 2014
    ..The present study investigated the pitch-MMNm in patients with bipolar disorder using whole-head 306-ch magnetoencephalography (MEG)...
  9. doi request reprint Review of neurophysiological findings in patients with schizophrenia
    Toshiaki Onitsuka
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Psychiatry Clin Neurosci 67:461-70. 2013
    ..Exploring the associations between neural substrates, including neurotransmitter systems, and neurophysiological findings, will lead to a more comprehensive understanding of the pathophysiology of schizophrenia...
  10. doi request reprint Decreased spatial frequency sensitivities for processing faces in male patients with chronic schizophrenia
    Choji Obayashi
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka, Japan
    Clin Neurophysiol 120:1525-33. 2009
    ..We investigated whether electrophysiological abnormalities exist in visual processing for spatial frequency (SF)-filtered neutral/emotional faces in schizophrenics...
  11. doi request reprint Early integration processing between faces and vowel sounds in human brain: an MEG investigation
    Itta Nakamura
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Neuropsychobiology 71:187-95. 2015
    ..Unconscious fast integration of face and voice information is a crucial brain function necessary for communicating effectively with others. Here, we investigated for evidence of rapid face-voice integration in the auditory cortex...
  12. doi request reprint Increased BOLD Signals Elicited by High Gamma Auditory Stimulation of the Left Auditory Cortex in Acute State Schizophrenia
    Hironori Kuga
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashiku, Fukuoka 812 8582, Japan Division of Clinical Research, National Hospital Organization, Hizen psychiatric Center, 160 Mitsu, Yoshinogari cho, Kanzaki gun, Saga 842 0192, Japan
    EBioMedicine 12:143-149. 2016
    ....
  13. doi request reprint Prism adaptation and perceptual skill learning deficits in early-stage Parkinson's disease
    Eigo Sato
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Neuropsychobiology 70:165-72. 2014
    ..Moreover, skill learning over several days in PD patients has not been studied...
  14. ncbi request reprint Neurophysiological findings in patients with bipolar disorder
    Toshiaki Onitsuka
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812 8582, Japan
    Suppl Clin Neurophysiol 62:197-206. 2013
    ..Moreover, neurophysiological approaches may reveal appropriate biological indices to distinguish bipolar disorder and schizophrenia, aiding the development of more effective medication at the early stages of illness...
  15. ncbi request reprint [Recent topics in neurophysiological studies of patients with schizophrenia]
    Toshiaki Onitsuka
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University
    Seishin Shinkeigaku Zasshi 115:847-52. 2013
    ..To understand the pathophysiology of schizophrenia, neurophysiological efforts are important...
  16. doi request reprint Gender difference in right lateral prefrontal hemodynamic response while viewing fearful faces: a multi-channel near-infrared spectroscopy study
    Kohei Marumo
    Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
    Neurosci Res 63:89-94. 2009
    ..This observation may help to establish NIRS as a clinical tool for monitoring prefrontal function on an individual basis...
  17. doi request reprint Preattentive visual change detection as reflected by the mismatch negativity (MMN)--evidence for a memory-based process
    Toshihiko Maekawa
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Neurosci Res 65:107-12. 2009
    ..These results suggest that memory-based change detection underlies vMMN. Therefore, vMMN is useful to study visual sensory memory function...
  18. ncbi request reprint [Neuroimaging investigation in psychiatry]
    Toshiaki Onitsuka
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University
    Rinsho Shinkeigaku 52:1376-8. 2012
    ..This is most prominent in some neocortical regions and is associated with worsening of symptoms. To understand the pathophysiologic basis, neuroscience efforts and collaborations between neurologists and psychiatrists will be important...
  19. doi request reprint Abnormal neural oscillatory activity to speech sounds in schizophrenia: a magnetoencephalography study
    Shogo Hirano
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812 8582, Japan
    J Neurosci 28:4897-903. 2008
    ..Moreover, the present study suggests that schizophrenia might be characterized by an opposite pattern of hemispheric lateralization in auditory evoked oscillations...
  20. ncbi request reprint Different SPECT findings before and after Capgras' syndrome in interictal psychosis
    Hideki Horikawa
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812 8582, Japan
    Epilepsy Behav 9:189-92. 2006
    ..The enhanced hypoperfusion demonstrated by SPECT in the present case seems to indicate a right interhemispheric disconnection resulting in the occurrence of Capgras' syndrome...
  21. doi request reprint Auditory sensory gating to the human voice: a preliminary MEG study
    Yoji Hirano
    Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Psychiatry Res 163:260-9. 2008
    ..These results therefore demonstrate the presence of sensory gating for auditory inputs of the human voice in the primary auditory cortex and the auditory association area...
  22. pmc Functional and structural deficits in brain regions subserving face perception in schizophrenia
    Toshiaki Onitsuka
    Department of Psychiatry, VA Boston Healthcare System, Brockton Division, Harvard Medical School, Brockton, MA 02301, USA
    Am J Psychiatry 163:455-62. 2006
    ....
  23. ncbi request reprint Interictal psychosis after stroke with forced normalization
    Tomoyuki Ohara
    J Neuropsychiatry Clin Neurosci 18:557-9. 2006
  24. pmc Middle and inferior temporal gyrus gray matter volume abnormalities in first-episode schizophrenia: an MRI study
    Noriomi Kuroki
    Department of Psychiatry, Harvard Medical School, Boston, MA 02301, USA
    Am J Psychiatry 163:2103-10. 2006
    ..However, the middle and inferior temporal gyri have received little investigation, especially in first-episode schizophrenia...
  25. pmc Progressive decrease of left Heschl gyrus and planum temporale gray matter volume in first-episode schizophrenia: a longitudinal magnetic resonance imaging study
    Kiyoto Kasai
    Clinical Neuroscience Division, Laboratory of Neuroscience, Department of Psychiatry, Veterans Affairs Boston Healthcare System, Brockton Division, Brockton, Mass, USA
    Arch Gen Psychiatry 60:766-75. 2003
    ....