Changes of intertrial response rate with elapse of time after two-way avoidance trial in rats.
The changes of intertrial response (ITR) rate along the intertrial interval duration were examined in 30 rats trained in two-way avoidance. The lowest ITR rate was observed just after a cross-through response terminating a trial. Rats trained with a warning signal of darkness showed over-all higher ITR rates and shorter periods of post-trial reduction of ITR rate than rats trained with a more salient noise warning signal. The period of post-trial low ITR rate lengthened in consecutive sessions indicating the gradual development of a safety state.
Zieliński
K
K
Department of Neurophysiology, Nencki Institute of Experimental Biology, Warsaw, Poland.
Nikolaev
E
E
D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D001522:Behavior, Animal / Q000502:physiology*; D005239:Fear; D005260:Female; D051381:Rats; D017208:Rats, Wistar; D011930:Reaction Time / Q000502:physiology*