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Systemic propranolol acts centrally to reduce conditioned fear in rats without impairing extinction
Background—Previous work has implicated noradrenergic beta-receptors in the consolidation andreconsolidation of conditioned fear. Less is known, however, about their role in fear expression and extinction. The beta-receptor ...
A time-dependent role of midline thalamic nuclei in the retrieval of fear memory
Increasing evidence indicates that the medial prefrontal cortex (mPFC) and the amygdala mediate expression and extinction of conditioned fear, but few studies have examined the inputs to these structures. The dorsal part ...