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Crombag, Hans S.; Johnson, Alexander W.; Zimmer, Anne M.; Zimmer, Andreas; Holland, Peter C. – Learning & Memory, 2010
Cannabinoid CB1 receptor is abundantly expressed throughout the CNS and is implicated in numerous physiological and behavioral functions, including appetite and feeding. In the present study, wild-type and CB1 heterozygous and homozygous knockout mice were tested on an instrumental outcome-selective devaluation task to assess changes in acquired…
Descriptors: Animal Behavior, Animals, Brain, Evaluation Methods
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Holland, Peter C.; Rescorla, Robert A. – Journal of Experimental Psychology: Animal Behavior Processes, 1975
Rat received conditioning based upon a food unconditioned stimulus and then received manipulations designed to reduce the value of that food. The effects of these manipulations were assessed during extinction tests of the conditioned stimuli. (Editor/RK)
Descriptors: Animal Behavior, Conditioning, Experimental Psychology, Flow Charts
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Holland, Peter C. – Journal of Experimental Psychology: Animal Behavior Processes, 1977
Recent data indicate that the form of the conditioned response (CR) may often be substantially influenced by the characteristics of the conditioned stimulus (CS) as well as by those of the unconditioned stimulus (US). Here five experiments examine the influence of CS characteristics on the form of the Pavlovian CR anticipatory to a food US in…
Descriptors: Animal Behavior, Charts, Conditioning, Experimental Psychology