Specific behaviors during auditory fear conditioning and postsynaptic expression of AMPA receptors in the basolateral amygdala predict interindividual differences in fear generalization in male rats

Training parameters poorly predict pre-CS freezing during test. Only four out of 120 Pearson correlations were statistically significant. Training ITI freezing (A), TS2 freezing (B), and Post rearing (D) average bout duration (in seconds per bout), as well as Pre rearing duration (in seconds) (C) linearly correlated with testing absolute bout frequency of freezing parameter during pre-CS phase. Squared Pearson coefficient (r²) and P-value indicate that only between 17% and 23% of the pre-CS freezing bouts during testing can be explained by any one of these four training parameters.