Similar Impacts of the Interaural Delay and Interaural Correlation on   Binaural Gap Detection

doi:10.1371/journal.pone.0126342

CORC > 北京大学 > 心理与认知科学学院

	Similar Impacts of the Interaural Delay and Interaural Correlation on Binaural Gap Detection
	Kong, Lingzhi ; Xie, Zilong ; Lu, Lingxi ; Qu, Tianshu ; Wu, Xihong ; Yan, Jun ; Li, Liang
刊名	PLOS ONE
	2015
关键词	AUDITORY-NERVE DATA INFERIOR COLLICULUS TIME DIFFERENCES CORRELATION DISCRIMINATION CROSS-CORRELATION NOISE SENSITIVITY UNMASKING FREQUENCY MASKING
DOI	10.1371/journal.pone.0126342
英文摘要	The subjective representation of the sounds delivered to the two ears of a human listener is closely associated with the interaural delay and correlation of these two-ear sounds. When the two-ear sounds, e.g., arbitrary noises, arrive simultaneously, the single auditory image of the binaurally identical noises becomes increasingly diffuse, and eventually separates into two auditory images as the interaural correlation decreases. When the interaural delay increases from zero to several milliseconds, the auditory image of the binaurally identical noises also changes from a single image to two distinct images. However, measuring the effect of these two factors on an identical group of participants has not been investigated. This study examined the impacts of interaural correlation and delay on detecting a binaurally uncorrelated fragment (interaural correlation = 0) embedded in the binaurally correlated noises (i.e., binaural gap or break in interaural correlation). We found that the minimum duration of the binaural gap for its detection (i.e., duration threshold) increased exponentially as the interaural delay between the binaurally identical noises increased linearly from 0 to 8 ms. When no interaural delay was introduced, the duration threshold also increased exponentially as the interaural correlation of the binaurally correlated noises decreased linearly from 1 to 0.4. A linear relationship between the effect of interaural delay and that of interaural correlation was described for listeners participating in this study: a 1 ms increase in interaural delay appeared to correspond to a 0.07 decrease in interaural correlation specific to raising the duration threshold. Our results imply that a tradeoff may exist between the impacts of interaural correlation and interaural delay on the subjective representation of sounds delivered to two human ears.; National Natural Science Foundation of China [31170985, 61175043]; Research Special Fund for Public Welfare Industry of Health [201202001]; National High Technology Research and Development Program of China [2014GX02D01144]; Campbell McLaurin Chair Grant for Hearing Deficiencies; Alberta Innovates-Health Solutions; SCI(E); PubMed; ARTICLE; liangli@pku.edu.cn; 6; e0126342; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/419040]
专题	心理与认知科学学院信息科学技术学院
推荐引用方式 GB/T 7714	Kong, Lingzhi,Xie, Zilong,Lu, Lingxi,et al. Similar Impacts of the Interaural Delay and Interaural Correlation on Binaural Gap Detection[J]. PLOS ONE,2015.
APA	Kong, Lingzhi.,Xie, Zilong.,Lu, Lingxi.,Qu, Tianshu.,Wu, Xihong.,...&Li, Liang.(2015).Similar Impacts of the Interaural Delay and Interaural Correlation on Binaural Gap Detection.PLOS ONE.
MLA	Kong, Lingzhi,et al."Similar Impacts of the Interaural Delay and Interaural Correlation on Binaural Gap Detection".PLOS ONE (2015).