Fear memory Rats 4 animal experiment 4 article 4 controlled study 4 fear 4 male 4 nonhuman 4 rat 4 Animals 2 Conditioning, Classical 2 Cycloserine 2 D-cyloserine 2 Dose-Response Relationship, Drug 2 Fear 2 GABA Modulators 2 Inhibitory avoidance learning 2 Lateral Habenula 2 Male 2 Memory 2 Memory persistence 2 Midazolam 2 Neurotransmitter Agents 2 Rats, Wistar 2 Reactivation-reconsolidation 2 Receptors, N-Methyl-D-Aspartate 2 Stress 2 Stress, Psychological 2 Time Factors 2 Wistar 2