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猫的早期听觉诱发电位:频率效应。

Early auditory-evoked responses in the cat: rate effects.

作者信息

Mair I W, Elverland H H, Laukli E

出版信息

Audiology. 1979;18(4):265-78.

PMID:475661
Abstract

The brain-stem electric responses (BSER) of the cat have been evoked with a 4-kHz tone burst at three stimulus intensity levels, and at interstimulus intervals (ISI) varying fromm 500 to 20 ms. Response amplitude and latency have also been compared in different post-natal age groups, and in bilaterally hearing and unilaterally deaf animals. Increasing reptition rates produce greater latency changes in the youngest animals, whilst all age groups show amplitude decrement at shorter ISI, apart from wave III which increases in amplitude, particularly in bilaterally hearing cats at higher stimulus intensity levels. Wave I shows greater amplitude reduction than do the succeeding waves, which may indicate that the primary cochlear nuclei contribute to later waves of the BSER.

摘要

用4千赫的短纯音在三种刺激强度水平下诱发猫的脑干电反应(BSER),刺激间隔(ISI)从500毫秒到20毫秒不等。还比较了不同出生后年龄组以及双侧听力正常和单侧失聪动物的反应幅度和潜伏期。重复率增加时,最年幼的动物潜伏期变化更大,而所有年龄组在较短的ISI时都出现幅度减小,但波III的幅度增加,尤其是在较高刺激强度水平下的双侧听力正常的猫中。波I的幅度减小比后续波更大,这可能表明初级耳蜗核参与了BSER的后续波。

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