Inhibitory sensory preconditioning.
In two experiments rats were preexposed to neutral stimuli. Both experiments used a between-subjects design in which a paired group was preexposed to intermixed presentations of A --> Band AX, and an unpaired control group was preexposed to intermixed presentations of A, B, and AX. After the conditioning of B, in Experiment 1, conditioned responding to X was acquired more slowly in the paired than in the unpaired group. Furthermore, in Experiment 2, X reduced conditioned responding to a separately trained excitor in a summation test but only in the paired group. Together, these results provide evidence of an inhibitory form of sensory preconditioning.
Espinet
Alfredo
A
University of Málaga, Spain. espinet@uma.es
González
Felisa
F
Balleine
Bernard
B
D000818:Animals; D001522:Behavior, Animal; D003213:Conditioning, Psychological; D005260:Female; D007266:Inhibition, Psychological; D016555:Matched-Pair Analysis; D011897:Random Allocation; D051381:Rats; D020318:Rats, Long-Evans; D012677:Sensation; D013997:Time Factors