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Effects of post-training caffeine treatment on conditioned freezing: (a) Pre-CS freezing and freezing to the tone CS is expressed across successive 2-min bin. (b) Freezing to the training context 24 h after the CS-test is expressed in 2-min bins. Post-training administration of caffeine neither affected the expression of conditioned tone freezing nor conditioned context freezing (n = 8 per group).
