estrus n. the stage in the estrous cycle when a female anim...
behavior field any set of stimuli or conditions, or accumul...
release theory of humor the theory that people laugh out of...
ligand n. a molecule that binds to a specific site on anoth...
strephosymbolia n. 1. a perceptual disorder cha...
autostimulation theory a widely held supposition that REM s...