Differences in spiking patterns among cortical neurons.

Shigeru Shinomoto; Keisetsu Shima; Jun Tanji

doi:10.1162/089976603322518759

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Differences in spiking patterns among cortical neurons.

Shigeru Shinomoto·Keisetsu Shima·Jun Tanji

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Abstract

Spike sequences recorded from four cortical areas of an awake behaving monkey were examined to explore characteristics that vary among neurons. We found that a measure of the local variation of interspike intervals, L(V), is nearly the same for every spike sequence for any given neuron, while it varies significantly among neurons. The distributions of L(V) values for neuron ensembles in three of the four areas were found to be distinctly bimodal. Two groups of neurons classified according to the spiking irregularity exhibit different responses to the same stimulus. This suggests that neurons in each area can be classified into different groups possessing unique spiking statistics and corresponding functional properties.

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Action Potentials Animals Cerebral Cortex Evoked Potentials Genetic Variation Haplorhini Neurons Reaction Time Statistical Distributions Synaptic Transmission Time Factors Wakefulness Journal Article Research Support, Non-U.S. Gov't

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Shigeru Shinomoto, Keisetsu Shima, Jun Tanji. 2003. Differences in spiking patterns among cortical neurons.. https://doi.org/10.1162/089976603322518759

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