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Davis, Michael; Myers, Karyn M.; Ressler, Kerry J. – Learning & Memory, 2006
Fear extinction is defined as a decline in conditioned fear responses (CRs) following nonreinforced exposure to a feared conditioned stimulus (CS). Behavioral evidence indicates that extinction is a form of inhibitory learning: Extinguished fear responses reappear with the passage of time (spontaneous recovery), a shift of context (renewal), and…
Descriptors: Fear, Epidemiology, Behavioral Science Research, Conditioning
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Walker, David L.; Paschall, Gayla Y.; Davis, Michael – Learning & Memory, 2005
The basolateral amygdala's involvement in fear acquisition and expression to visual and auditory stimuli is well known. The involvement of the basolateral and other amygdala areas in fear acquisition and expression to stimuli of other modalities is less certain. We evaluated the contribution of the basolateral and medial amygdala to olfactory and…
Descriptors: Conditioning, Fear, Auditory Stimuli, Visual Stimuli