Brain stem frequency‐following response to dichotic vowels during attention
作者:
Gary Galbraith,
Sunil Bhuta,
Abigail Choate,
Jennifer Kitahara,
Thomas Mullen,
期刊:
NeuroReport
(OVID Available online 1998)
卷期:
Volume 9,
issue 8
页码: 1889-1893
ISSN:0959-4965
年代: 1998
出版商: OVID
关键词: Attention;Brain stem frequency-following response (FFR);Dichotic listening;Horizontal and vertical montage FFRs;Vowel stimuli
数据来源: OVID
摘要:
FREQUENCY-FOLLOWING responses (FFRs) were elicited by English long vowels (female /a/ and male /e/) in a dichotic listening task. Stimuli were simultaneous and of equal duration, but differing spectra permitted unique identification of vowel components in the compound FFR. Horizontal and vertical montage FFRs were recorded with putative origins in the acoustic nerve and central brain stem, respectively. FFRs obtained during attention to each vowel showed significant effects for the voice fundamental frequency, f0, which is perceptually salient and conveys paralinguistic information such as the sex of the speaker. Amplitudes of f0were larger when vowels were attended than when ignored. These findings provide evidence of short-latency attention effects in humans and suggest that linguistic attention may initially filter inputs based on salient paralinguistic cues.
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