How the brain separates sounds

被引:219
作者
Carlyon, RP [1 ]
机构
[1] MRC Cognit & Brain Sci Unit, Cambridge CB2 2EF, England
关键词
D O I
10.1016/j.tics.2004.08.008
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
In everyday life we often listen to one sound, such as someone's voice, in a background of competing sounds. To do this, we must assign simultaneously occurring frequency components to the correct source, and organize sounds appropriately over time. The physical cues that we exploit to do so are well-established; more recent research has focussed on the underlying neural bases, where most progress has been made in the study of a form of sequential organization known as 'auditory streaming'. Listeners' sensitivity to streaming cues can be captured in the responses of neurons in the primary auditory cortex, and in EEG wave components with a short latency (<200 ms). However, streaming can be strongly affected by attention, suggesting that this early processing either receives input from non-auditory areas, or feeds into processes that do.
引用
收藏
页码:465 / 471
页数:7
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