Presentation 2002/10/18
Temporal Recovery of Auditory Evoked Magnetic Fields as a Measure of Sensory Gating in Schizophrenia
Masato YUMOTO, Osamu SAITOH, Kenji ITOH, Akira UNO, Yuu KANEKO, Maki MATSUDA, Kimitaka KAGA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this study we compared the temporal recovery function of auditory evoked magnetic fields in schizophrenic patients and in normal volunteers using paired-stimulus paradigm. Tone bursts of 10 msec duration were delivered in pairs to both ears at interpair intervals of 1.4 - 1.6 sec. Stimulus onset asynchrony (SCA) within the pair was either 50, 70, 100, 150, 200, 300, 500 or 700 msec, all intervals being presented randomly. Magnetic responses were recorded with a 204-channel whole-head neuromagnetorneter and the channel which showed maximal P50m - N100m was selected for analysis. The recovery curves of P50m showed significant difference between the two groups, not only at 500 msec but also at 150 msec in SOA.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Auditory Evoked Response / P50 / N100 / Temporal Recovery / Sensory Gating / Paired-stimulus Paradigm / Schizophrenia / Magnetoencephalography
Paper # TL2002-29
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Committee TL
Conference Date 2002/10/18(1days)
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Registration To Thought and Language (TL)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Temporal Recovery of Auditory Evoked Magnetic Fields as a Measure of Sensory Gating in Schizophrenia
Sub Title (in English)
Keyword(1) Auditory Evoked Response
Keyword(2) P50
Keyword(3) N100
Keyword(4) Temporal Recovery
Keyword(5) Sensory Gating
Keyword(6) Paired-stimulus Paradigm
Keyword(7) Schizophrenia
Keyword(8) Magnetoencephalography
1st Author's Name Masato YUMOTO
1st Author's Affiliation Department of Laboratory Medicine, University of Tokyo.:National Center Hospital for Mental, Nervous and Muscular Disorders, NCNP()
2nd Author's Name Osamu SAITOH
2nd Author's Affiliation National Center Hospital for Mental, Nervous and Muscular Disorders, NCNP
3rd Author's Name Kenji ITOH
3rd Author's Affiliation Department of Speech and Cognitive Science, School of Medicine, University of Tokyo
4th Author's Name Akira UNO
4th Author's Affiliation National Institute of Mental Health, National Center of Neurology and Psychiatry
5th Author's Name Yuu KANEKO
5th Author's Affiliation National Center Hospital for Mental, Nervous and Muscular Disorders, NCNP
6th Author's Name Maki MATSUDA
6th Author's Affiliation Department of Musicology, Tokyo National University of Fine Arts and Music
7th Author's Name Kimitaka KAGA
7th Author's Affiliation Department of Otolaryngology, University of Tokyo
Date 2002/10/18
Paper # TL2002-29
Volume (vol) vol.102
Number (no) 412
Page pp.pp.-
#Pages 4
Date of Issue