Electrophysiological evidence implicates automatic low-level feature detectors in perceptual asymmetry

被引：19

作者：

Bishop, DVM ^{[1
]}

O'Reilly, J ^{[1
]}

McArthur, GM ^{[1
]}

机构：

[1] Univ Oxford, Dept Expt Psychol, Oxford OX1 3UD, England

来源：

COGNITIVE BRAIN RESEARCH | 2005年 / 24卷 / 01期

基金：

英国惠康基金;

关键词：

auditory feature detection; mismatch negativity; attention;

D O I：

10.1016/j.cogbrainres.2004.12.007

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Perceptual asymmetry has been demonstrated behaviorally using frequency modulated (FM) stimuli: a modulated tone is easier to detect among unmodulated distracters than the converse. We demonstrate perceptual asymmetry for FM tones in the mismatch negativity (MMN) component of the event-related potential, regardless of whether the participant attends to the tones. These results suggest that perceptual asymmetry reflects the automatic activation of low-level feature detectors in the auditory system. (c) 2005 Elsevier B.V.All rights reserved.

引用

页码：177 / 179

页数：3

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