Investigation of the effects of stimulation side on middle latency auditory evoked magnetic fields

Author

Yoshiura, Takashi ; Ueno, Shoogo ; Iramina, Keiji ; Masuda, Kouji

Author_Institution

Dept. of Radiol., Kyushu Univ., Fukuoka, Japan

fYear

1994

fDate

3-6 Nov 1994

Firstpage

189

Abstract

The authors investigated the effects of the stimulation side on middle latency auditory evoked responses (MLR) with neuromagnetic methods. Middle latency auditory evoked magnetic fields elicited by 1.0 msec clicks delivered to the ipsilateral and contralateral ear were recorded with a 7-channel DC SQUID. The amplitudes and latencies of the magnetic equivalents of Pa and Pb responses, which are the two main peaks of MLR, were measured. The amplitude of the contralateral Pa response was found to be significantly larger than the ipsilateral Pa response. On the other hand, no significant difference was observed in the latencies of Pa and Pb between the ipsi- and contralateral responses

Keywords

hearing; magnetoencephalography; 1 ms; 7-channel DC SQUID; Pb; clicks; contralateral Pa response; ipsilateral Pa response; middle latency auditory evoked magnetic fields; neuromagnetic methods; stimulation side effects; Biomedical engineering; Computer science; Delay; Ear; Electromagnetic measurements; Magnetic field measurement; Magnetic fields; Magnetoencephalography; Radiology; SQUIDs;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE

Conference_Location

Baltimore, MD

Print_ISBN

0-7803-2050-6

Type

conf

DOI

10.1109/IEMBS.1994.411811

Filename

411811