learning article 157 nonhuman 140 controlled study 129 Animals 127 male 109 priority journal 106 Male 101 animal experiment 89 memory 89 Memory 84 human 82 physiology 82 Learning 80 Humans 74 animal 71 memory consolidation 57 adult 52 conditioning 51 Female 50 female 50 long term memory 48 crab 47 Behavior, Animal 45 Time Factors 38 animal behavior 37 Brachyura 35 Apis mellifera 34 Bees 34 nerve cell plasticity 33