Interhemispheric Differences of the Middle Latency Auditory Evoked Magnetic Fields Revealed by a Whole Head Magnetoencephalography System Akitake Kanno 1,2 , Nobukazu Nakasato 1 , Satoru Fujiwara 1 , Takashi Yoshimoto 2 1MEG Laboratory, Kohnan Hospital 2Department of Neurosurgery, Tohoku University School of Medicine Keyword: magnetoencephalography , auditory evoked response , middle latency components , whole head MEG , superconducting quantum interference device , auditory cortex pp.989-994
Published Date 1995/10/1
DOI https://doi.org/10.11477/mf.1406900856
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It is known that the auditory evoked N100m response appears faster in the contralateral hemi-sphere than in the ipsilateral hemisphere to the stimulated ear. For the middle latency response named P50m, however, there have been only few studies with controversial findings. In the present study, auditory evoked responses to the unilateral tone stimuli were measured in 36 right-handed normal subjects, using a helmet-shaped whole head magnetoencephalography system.

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