Rapid Tuning of Auditory &quot;What&quot; and &quot;Where&quot; Pathways by Training

doi:10.1093/cercor/bht251

CORC > 北京大学 > 信息科学技术学院

	Rapid Tuning of Auditory "What" and "Where" Pathways by Training
	Du, Yi ; He, Yu ; Arnott, Stephen R. ; Ross, Bernhard ; Wu, Xihong ; Li, Liang ; Alain, Claude
刊名	cerebral cortex
	2015
关键词	attention hearing MEG plasticity speech RECEPTIVE-FIELD PLASTICITY GAMMA-BAND ACTIVITY SELECTIVE ATTENTION WORKING-MEMORY HEADPHONE SIMULATION CORTICAL PLASTICITY SOUND RECOGNITION GUINEA-PIG CORTEX LOCALIZATION
DOI	10.1093/cercor/bht251
英文摘要	Behavioral improvement within the first hour of training is commonly explained as procedural learning (i.e., strategy changes resulting from task familiarization). However, it may additionally reflect a rapid adjustment of the perceptual and/or attentional system in a goal-directed task. In support of this latter hypothesis, we show feature-specific gains in performance for groups of participants briefly trained to use either a spectral or spatial difference between 2 vowels presented simultaneously during a vowel identification task. In both groups, the neuromagnetic activity measured during the vowel identification task following training revealed source activity in auditory cortices, prefrontal, inferior parietal, and motor areas. More importantly, the contrast between the 2 groups revealed a striking double dissociation in which listeners trained on spectral or spatial cues showed higher source activity in ventral ("what") and dorsal ("where") brain areas, respectively. These feature-specific effects indicate that brief training can implicitly bias top-down processing to a trained acoustic cue and induce a rapid recalibration of the ventral and dorsal auditory streams during speech segregation and identification.; Neurosciences; SCI(E); 1; ARTICLE; calain@research.baycrest.org; 2; 496-506; 25
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/323477]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Du, Yi,He, Yu,Arnott, Stephen R.,et al. Rapid Tuning of Auditory "What" and "Where" Pathways by Training[J]. cerebral cortex,2015.
APA	Du, Yi.,He, Yu.,Arnott, Stephen R..,Ross, Bernhard.,Wu, Xihong.,...&Alain, Claude.(2015).Rapid Tuning of Auditory "What" and "Where" Pathways by Training.cerebral cortex.
MLA	Du, Yi,et al."Rapid Tuning of Auditory "What" and "Where" Pathways by Training".cerebral cortex (2015).