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Published on: March 30, 2016
Beta-adrenergic involvement in acquisition vs. extinction of a classically conditioned eye blink response in rabbits
1Institute for Behavioral Genetics, University of Colorado, Boulder 80309, USA.
Brain Research
|March 13, 1998
Abstract:
Beta-adrenergic involvement in classical conditioning and extinction was investigated. Five groups of rabbits (saline, 1, 3, 5 or 10 mg kg(-1) of the beta-adrenergic antagonist propranolol) were trained with a tone conditioned stimulus (CS) paired with a corneal air puff unconditioned stimulus (US). Both 5 mg kg(-1) and 10 mg kg(-1) propranolol delayed acquisition of conditioned responses but all groups were able to learn the task to criterion. Consistent changes were not seen during extinction.

