Attentional modulation of the early cortical representation of speech   signals in informational or energetic masking

doi:10.1016/j.bandl.2014.06.002

CORC > 北京大学 > 信息科学技术学院

	Attentional modulation of the early cortical representation of speech signals in informational or energetic masking
	Zhang, Changxin ; Lu, Lingxi ; Wu, Xihong ; Li, Liang
刊名	大脑与语言
	2014
关键词	Speech encoding Speech recognition Attention Informational masking Energetic masking Event-related potentials Perceptual separation Precedence effect Active listening Passive listening EVENT-RELATED POTENTIALS SOUNDS VERTICAL-BAR PASS NOISE MASKING FREQUENCY-FOLLOWING RESPONSES PERCEIVED SPATIAL SEPARATION PRESENTED LIPREADING CUES OLDER-ADULTS CHRONIC-SCHIZOPHRENIA SELECTIVE ATTENTION MISMATCH NEGATIVITY
DOI	10.1016/j.bandl.2014.06.002
英文摘要	It is easier to recognize a masked speech when the speech and its masker are perceived as spatially segregated. Using event-related potentials, this study examined how the early cortical representation of speech is affected by different masker types and perceptual locations, when the listener is either passively or actively listening to the target speech syllable. The results showed that the two-talker-speech masker induced a much larger masking effect on the N1/P2 complex than either the steady-state-noise masker or the amplitude-modulated speech-spectrum-noise masker did. Also, a switch from the passive- to active-listening condition enhanced the N1/P2 complex only when the masker was speech. Moreover, under the active-listening condition, perceived separation between target and masker enhanced the N1/P2 complex only when the masker was speech. Thus, when a masker is present, the effect of selective attention to the target-speech signal on the early cortical representation of the speech signal is masker-type dependent. (C) 2014 Elsevier Inc. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000340316400010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Audiology & Speech-Language Pathology; Linguistics; Neurosciences; Psychology, Experimental; SCI(E); PubMed; SSCI; 1; ARTICLE; liangli@pku.edu.cn; 85-95; 135
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/162740]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Changxin,Lu, Lingxi,Wu, Xihong,et al. Attentional modulation of the early cortical representation of speech signals in informational or energetic masking[J]. 大脑与语言,2014.
APA	Zhang, Changxin,Lu, Lingxi,Wu, Xihong,&Li, Liang.(2014).Attentional modulation of the early cortical representation of speech signals in informational or energetic masking.大脑与语言.
MLA	Zhang, Changxin,et al."Attentional modulation of the early cortical representation of speech signals in informational or energetic masking".大脑与语言 (2014).