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Fig. 4 | Molecular Brain

Fig. 4

From: Conditioned stimulus presentations alter anxiety level in fear-conditioned mice

Fig. 4

Measurement of heart rate during CS presentation. a Experimental procedures. b Normalized changes in heart rate showing a small reduction during CS- and a large increase during CS+. c Normalized changes in RR intervals showing a small elevation during CS- and a large reduction during CS+. Note the slow recovery towards baseline level after CS termination. d Quantification of changes in heart date over baseline level (pre-CS, 30 s) from data in (b) during the last 10 s of CS presentations. e Quantification of changes in RR intervals over baseline values (pre-CS, 30 s) from data in (c) during the last 10 s of CS presentations. f The effect of diazepam on heart rate during CS presentation. g The effect of diazepam on RR interval during CS presentation.*, p < 0.05; **, p < 0.01. Data were analyzed by Two-tailed paired t-test

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