midazolam Animals 6 Fear 6 Midazolam 6 animal experiment 6 article 6 controlled study 6 fear 6 learning 6 nonhuman 6 priority journal 6 Conditioning, Classical 4 GABA Modulators 4 Male 4 Memory 4 Rats 4 Rats, Wistar 4 Stress, Psychological 4 Time Factors 4 benzodiazepine 4 conditioned reflex 4 conditioning 4 drug effect 4 male 4 memory 4 rat 4 stimulus response 4 stress 4 training 4 4 aminobutyric acid A receptor 2