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Cortical activity: single cell, cell assemblages, and networks 

Cortical activity: single cell, cell assemblages, and networks
Cortical activity: single cell, cell assemblages, and networks

John G. R. Jef ferys

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date: 17 May 2022

This chapter describes how the activity of neurons produces electrical potentials that can be recorded at the levels of single cells, small groups of neurons, and larger neuronal networks. It outlines how the movement of ions across neuronal membranes produces action potentials and synaptic potentials. It considers how the spatial arrangement of specific ion channels on the neuronal surface can produce potentials that can be recorded from the extracellular space. Finally, it outlines how the layered cellular structure of the neocortex can result in summation of signals from many neurons to be large enough to record through the scalp as evoked potentials or the electroencephalogram.

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