频率拓扑
听觉皮层
听觉场景分析
连贯性(哲学赌博策略)
感知
听觉系统
代表(政治)
计算机科学
对比度(视觉)
同步(交流)
听觉感知
神经科学
语音识别
沟通
心理学
人工智能
物理
法学
频道(广播)
政治
量子力学
计算机网络
政治学
作者
Mounya Elhilali,Ling Ma,Christophe Micheyl,Andrew J. Oxenham,Shihab A. Shamma
出处
期刊:Neuron
[Elsevier]
日期:2009-01-29
卷期号:61 (2): 317-329
被引量:188
标识
DOI:10.1016/j.neuron.2008.12.005
摘要
Just as the visual system parses complex scenes into identifiable objects, the auditory system must organize sound elements scattered in frequency and time into coherent "streams." Current neurocomputational theories of auditory streaming rely on tonotopic organization of the auditory system to explain the observation that sequential spectrally distant sound elements tend to form separate perceptual streams. Here, we show that spectral components that are well separated in frequency are no longer heard as separate streams if presented synchronously rather than consecutively. In contrast, responses from neurons in primary auditory cortex of ferrets show that both synchronous and asynchronous tone sequences produce comparably segregated responses along the tonotopic axis. The results argue against tonotopic separation per se as a neural correlate of stream segregation. Instead we propose a computational model of stream segregation that can account for the data by using temporal coherence as the primary criterion for predicting stream formation.
科研通智能强力驱动
Strongly Powered by AbleSci AI