Differential thresholds of local field potentials and unit discharges in rat auditory cortex.

Abstract:

:Thresholds for responses to tone bursts in the primary auditory field of pentobarbital-anesthetized rat are significantly lower for local field potentials (5.60 dB+/-1.76 S.E.M.) than for multiple unit discharges (17.80 dB+/-3.17), recorded simultaneously from the same microelectrode. The characteristic frequencies (CFs) of local field potentials provide a good 'predictive' estimate of unit CFs at their higher thresholds. The findings are consistent with the view that local field potentials in the auditory cortex reflect summed synaptic potentials rather than cellular discharges.

journal_name

Hear Res

journal_title

Hearing research

authors

Galván VV,Chen J,Weinberger NM

doi

10.1016/s0378-5955(02)00333-7

keywords:

subject

Has Abstract

pub_date

2002-05-01 00:00:00

pages

57-60

issue

1-2

eissn

0378-5955

issn

1878-5891

pii

S0378595502003337

journal_volume

167

pub_type

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