Toward a neurobiology of auditory object perception： What can we learn from the songbird forebrain？  

作　　者：Kai LU, David S. VICARIO 

机构地区：[1]Department of Psychology, Rutgers University, Piscataway, NJ 08854, USA

出　　处：《Current Zoology》2011年第6期671-683,共13页动物学报（英文版）

摘　　要：In the acoustic world, no sounds occur entirely in isolation; they always reach the ears in combination with other sounds. How any given sound is discriminated and perceived as an independent auditory object is a challenging question in neu- roscience. Although our knowledge of neural processing in the auditory pathway has expanded over the years, no good theory ex- ists to explain how perception of auditory objects is achieved. A growing body of evidence suggests that the selectivity of neurons in the auditory forebrain is under dynamic modulation, and this plasticity may contribute to auditory object perception. We propose that stimulus-specific adaptation in the auditory forebrain of the songbird （and perhaps in other systems） may play an important role in modulating sensitivity in a way that aids discrimination, and thus can potentially contribute to auditory object perception.

关 键 词：SONGBIRD Object perception Auditory scene analysis Neural selectivity Plasticity Stimulus-specific adaptation 

分 类 号：Q42[生物学—神经生物学] TN912.34[生物学—生理学]