Article

Ibotenic acid lesions in the medial geniculate region prevent the acquisition of differential Pavlovian conditioning of bradycardia to acoustic stimuli in rabbits.

Department of Psychology, University of Miami, Coral Gables, FL 33124 U.S.A.
Brain Research (impact factor: 2.73). 10/1986; 382(1):199-203. DOI:10.1016/0006-8993(86)90133-2 pp.199-203
Source: PubMed

ABSTRACT The present study examined the effect of ibotenic acid lesions in the medial portion of the medial geniculate nucleus (mMGN) on differential heart rate (HR) conditioning to acoustic stimuli in rabbits. Lesions in mMGN prevented the acquisition of differential HR conditioned responses but not bradycardiac responses to the conditioned stimuli. The data suggest that cells in this region play an important role in the discriminative component of HR conditioning.

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Keywords

bradycardiac responses
 
differential heart rate
 
discriminative component
 
HR conditioning
 
ibotenic acid lesions
 
medial geniculate nucleus
 
medial portion
 

T W Jarrell