Effects of lesions in the medial pallium on instrumental learning in the toad (Bufo arenarum).
Lesions of the medial pallium in toads significantly retarded extinction of a water-reinforced instrumental response in a runway training situation, relative to sham-operated and intact controls. The lesion had no effect on acquisition or in the amount of water uptake during acquisition. The results suggest that the medial pallium of toads plays a role in response inhibition. This possibility is discussed in relation to the results of analogous experiments with hippocampectomized rats.
Muzio
R N
RN
Instituto de Biología y Medicina Experimental, Buenos Aires, Argentina.
Segura
E T
ET
Papini
M R
MR
D000818:Animals; D001070:Appetitive Behavior / Q000502:physiology; D001931:Brain Mapping; D002022:Bufo arenarum / Q000502:physiology*; D003216:Conditioning, Operant / Q000502:physiology*; D004326:Drinking / Q000502:physiology; D005108:Extinction, Psychological / Q000502:physiology; D005917:Globus Pallidus / Q000502:physiology*; D008297:Male; D011939:Mental Recall / Q000502:physiology; D011930:Reaction Time / Q000502:physiology