TONOTOPIC ORGANIZATION OF HUMAN AUDITORY-CORTEX REVEALED BY MULTICHANNEL SQUID SYSTEM

被引：31

作者：

YAMAMOTO, T ^{[1
]}

UEMURA, T ^{[1
]}

LLINAS, R ^{[1
]}

机构：

[1] NYU MED CTR,DEPT PHYSIOL & BIOPHYS,NEW YORK,NY 10016

来源：

ACTA OTO-LARYNGOLOGICA | 1992年 / 112卷 / 02期

关键词：

NEUROMAGNETISM; SQUID; AUDITORY CORTEX; TONOTOPIC ORGANIZATION;

D O I：

10.1080/00016489.1992.11665404

中图分类号：

R76 [耳鼻咽喉科学];

学科分类号：

100213 ;

摘要：

A 14-channel SQUID (superconducting quantum interference device) system has been used to record the magnetic signal from the human brain in response to an auditory stimuli (750. 1 000, 1 250 and 1 500 Hz, 70, 76 and 82 dB SPL. 500 ms duration). Three individuals with normal hearing were studied. The locations of magnetic response at the latency of 70 ms (P70). 100 ms (N 100) and 160 ms (P160) from the onset of the auditory stimulus were identified, The location for N100 response corresponded to the primary auditory cortex (area 41), where a clear tonotopic organization was demonstrated. The amplitopic organization was less evident. These results suggest a flow of auditory signals in the temporal lobe and tonotopic organization in the auditory cortex.

引用

页码：201 / 204

页数：4

共 5 条

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[4]

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KAUFMAN, L ;

NICHOLSON, C ;

LLINAS, R .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1988, 85 (22) :8732-8736

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