Psychiatry Research: Neuroimaging
Volume 146, Issue 1 , Pages 91-95, 30 January 2006

Cortical reorganization and somatic delusional psychosis: A magnetoencephalographic study

  • Yutaka Kato

      Affiliations

    • Department of Neuropsychiatry, School of Medicine, Keio University, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
    • Laboratory of Brain Research, Oral Health Science Center, Tokyo Dental College, Chiba 261-8502, Japan
    • Inogashira Hospital, Tokyo 181-8531, Japan
    • Corresponding Author InformationCorresponding author. Department of Neuropsychiatry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan. Tel.: +81 3 3353 1211x62454; fax: +81 3 5379 0187.
    • ,
  • Taro Muramatsu

      Affiliations

    • Department of Neuropsychiatry, School of Medicine, Keio University, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
    • ,
  • Motoichiro Kato

      Affiliations

    • Department of Neuropsychiatry, School of Medicine, Keio University, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
    • Laboratory of Brain Research, Oral Health Science Center, Tokyo Dental College, Chiba 261-8502, Japan
    • ,
  • Yoshiyuki Shibukawa

      Affiliations

    • Laboratory of Brain Research, Oral Health Science Center, Tokyo Dental College, Chiba 261-8502, Japan
    • Department of Physiology, Tokyo Dental College, Chiba 261-8502, Japan
    • ,
  • Masuro Shintani

      Affiliations

    • Laboratory of Brain Research, Oral Health Science Center, Tokyo Dental College, Chiba 261-8502, Japan
    • ,
  • Fumihiro Yoshino

      Affiliations

    • Laboratory of Brain Research, Oral Health Science Center, Tokyo Dental College, Chiba 261-8502, Japan
    • Department of Neuropsychiatry, Tokyo Dental College Ichikawa General Hospital, Chiba 272-8513, Japan

Received 14 November 2004; received in revised form 31 March 2005; accepted 3 October 2005.

Abstract 

A woman complained of feeling a “metal-like thing” in her oral cavity 4 years after a stroke. She was convinced of the physical nature of her complaint despite intact dental and neurological findings. Somatosensory evoked magnetic fields suggested that her decreased right SII function was compensated for by the right SI region, probably contributing to the delusional symptom.

Keywords: Magnetoencephalography (MEG), Somatosensory cortex, Psychopathology

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PII: S0925-4927(05)00153-8

doi:10.1016/j.pscychresns.2005.10.003

Psychiatry Research: Neuroimaging
Volume 146, Issue 1 , Pages 91-95, 30 January 2006

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