Abstract
The effects of neurotoxic lesions of the amygdala central nucleus (CN) on changes in the associability of a conditioned stimulus (CS) in appetitive Pavlovian conditioning were examined in 2 experiments with rats. In Experiment 1, CN lesions had no effect on the reduction in the associability of a CS produced by preexposure to that cue (latent inhibition). In Experiment 2, CN lesions prevented the enhancement of the associability of a CS that is normally observed when an inconsistent predictive relation is arranged between that CS and another cue. The results support previous claims that the amygdala CN is involved in broad-based incremental, but not decremental, changes in the processing of CSs in Pavlovian conditioning.
Original language | English (US) |
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Pages (from-to) | 246-253 |
Number of pages | 8 |
Journal | Behavioral Neuroscience |
Volume | 107 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1993 |
Externally published | Yes |
ASJC Scopus subject areas
- Behavioral Neuroscience