Cortical encoding of pitch: recent results and open questions.
Cortical encoding of pitch: recent results and open questions.
复制标题
音调的皮质编码：最新结果和开放问题。
DOI：
10.1016/j.heares.2010.04.015
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发表时间：
2011-01
期刊：
影响因子：
2.8
通讯作者：
Schnupp, Jan W. H.
中科院分区：
文献类型：
--
作者：
Walker, Kerry M. M.;Bizley, Jennifer K.;King, Andrew J.;Schnupp, Jan W. H.
人们普遍认为，声音音调的关键预测因素是其周期性。因此，支持音调感知的神经结构必须能够反映声音的重复率，但仅此还不够。由于音调是一种心理声学属性，因此假定的音调皮质编码还必须能够解释声音的周期性量（即其时间规律性）与感知的音调显着性之间的关系，以及我们检测音调变化或区分音调上升和下降的能力的限制。音调代码还必须在存在响度或音色等干扰变量的情况下保持稳健。在这里，我们回顾了关于音调感知的皮层基础的大量工作，这说明引起音调感知的皮层过程的分布可能取决于声音的声学特征和功能相关性。虽然之前的研究极大地增进了我们的理解，但我们强调了有关音调感知的神经基础的几个悬而未决的问题。这些问题可以通过跨物种的研究工作和实验技术的合作来解决，并且更重要的是，通过检查行为动物中单个神经元的反应。
It is widely appreciated that the key predictor of the pitch of a sound is its periodicity. Neural structures which support pitch perception must therefore be able to reflect the repetition rate of a sound, but this alone is not sufficient. Since pitch is a psychoacoustic property, a putative cortical code for pitch must also be able to account for the relationship between the amount to which a sound is periodic (i.e. its temporal regularity) and the perceived pitch salience, as well as limits in our ability to detect pitch changes or to discriminate rising from falling pitch. Pitch codes must also be robust in the presence of nuisance variables such as loudness or timbre. Here, we review a large body of work on the cortical basis of pitch perception, which illustrates that the distribution of cortical processes that give rise to pitch perception is likely to depend on both the acoustical features and functional relevance of a sound. While previous studies have greatly advanced our understanding, we highlight several open questions regarding the neural basis of pitch perception. These questions can begin to be addressed through a cooperation of investigative efforts across species and experimental techniques, and, critically, by examining the responses of single neurons in behaving animals.
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DOI：
10.1523/jneurosci.5475-09.2010
发表时间：
2010-04-07
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Bizley JK;Walker KM;King AJ;Schnupp JW
通讯作者：
Schnupp JW
DOI：
10.1073/pnas.092278099
发表时间：
2002-07-23
影响因子：
11.1
作者：
Blake, DT;Strata, F;Merzenich, MM
通讯作者：
Merzenich, MM
影响因子：
3.4
作者：
Degerman, Alexander;Rinne, Teemu;Alho, Kimmo
通讯作者：
Alho, Kimmo
影响因子：
3.1
作者：
Cariani P
通讯作者：
Cariani P
影响因子：
2.9
作者：
Chawla, D;Lumer, ED;Friston, KJ
通讯作者：
Friston, KJ