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颞下回视觉皮层中神经元提供的第一个尖峰中的信息、尖峰顺序和尖峰数量。

Information in the first spike, the order of spikes, and the number of spikes provided by neurons in the inferior temporal visual cortex.

作者信息

Rolls Edmund T, Franco Leonardo, Aggelopoulos Nikolaos C, Jerez Jose M

机构信息

University of Oxford, Department of Experimental Psychology, South Parks Road, Oxford OX1 3UD, UK.

出版信息

Vision Res. 2006 Nov;46(25):4193-205. doi: 10.1016/j.visres.2006.07.026. Epub 2006 Oct 2.

Abstract

Information theoretic analyses showed that for single inferior temporal neurons and neuronal populations, more information was encoded in 20 or more ms by all the spikes available than just by the first spike in the same time window about which of 20 objects or faces was shown. Further, the temporal order in which the first spike arrived from different simultaneously recorded neurons did not encode more information than was present in the first spike or the spike counts. Thus information transmission in the inferior temporal cortex by the number of spikes in even short time windows is fast, and provides more information than only the first spike, or the spike order from different neurons.

摘要

信息论分析表明,对于单个颞下神经元和神经元群体而言,在20毫秒或更长时间内,所有可用尖峰所编码的信息比同一时间窗口内仅第一个尖峰所编码的关于所展示的20个物体或面孔中哪一个的信息更多。此外,来自不同同时记录神经元的第一个尖峰到达的时间顺序所编码的信息并不比第一个尖峰或尖峰计数中所包含的信息更多。因此,即使在短时间窗口内,颞下皮质通过尖峰数量进行的信息传递速度很快,并且比仅第一个尖峰或来自不同神经元的尖峰顺序提供了更多信息。

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