Reinforcing and punishing consequences of kindling.

Abstract:

:The motivational consequences of kindling were examined in the conditioned place preference paradigm. In a distinctive environment, rats received stimulation of the amygdala that triggered afterdischarge (AD) alone or AD and generalized seizures. After 4 conditioning trials, preference for the conditioning environment or a control environment was measured. Amygdaloid ADs associated with nonconvulsive seizures (stage 0) produced a conditioned decrease in time spent in the initially preferred chamber by rats receiving stimulation there, and they produced a conditioned increase in time spent in the initially nonpreferred chamber by rats receiving stimulation there. These effects were not large, in that there was no overall mean shift from preference to avoidance, or vice versa; but they were reliable and significant. Similarly, stage 5 seizures produced a small and nonsignificant decrease in time spent in the conditioning chamber in which seizures were triggered. It appears that amygdaloid AD produces weak effects that are either reinforcing or punishing, depending on the behavioral baseline, and that generalized amygdaloid seizures are, at most, mildly punishing.

journal_name

Epilepsy Res

journal_title

Epilepsy research

authors

Corcoran ME,Lanius R,Duren A

doi

10.1016/0920-1211(92)90051-t

subject

Has Abstract

pub_date

1992-12-01 00:00:00

pages

179-86

issue

3

eissn

0920-1211

issn

1872-6844

pii

0920-1211(92)90051-T

journal_volume

13

pub_type

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