Sparse and powerful cortical spikes.

Abstract:

:Activity in cortical networks is heterogeneous, sparse and often precisely timed. The functional significance of sparseness and precise spike timing is debated, but our understanding of the developmental and synaptic mechanisms that shape neuronal discharge patterns has improved. Evidence for highly specialized, selective and abstract cortical response properties is accumulating. Singe-cell stimulation experiments demonstrate a high sensitivity of cortical networks to the action potentials of some, but not all, single neurons. It is unclear how this sensitivity of cortical networks to small perturbations comes about and whether it is a generic property of cortex. The unforeseen sensitivity to cortical spikes puts serious constraints on the nature of neural coding schemes.

journal_name

Curr Opin Neurobiol

authors

Wolfe J,Houweling AR,Brecht M

doi

10.1016/j.conb.2010.03.006

subject

Has Abstract

pub_date

2010-06-01 00:00:00

pages

306-12

issue

3

eissn

0959-4388

issn

1873-6882

pii

S0959-4388(10)00044-9

journal_volume

20

pub_type

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