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Interindividual variations in the efficacy of memory consolidation in Pavlovian fear conditioning. (A) Time course of percentage time spent freezing (mean ± SEM) to the CS in rats (n = 12) during habituation, fear conditioning (day 1), and memory recall test (day 2). (B) Overnight changes in individual performance are bidirectional and are not determined by the level of freezing at the end of the conditioning.
