Müller-Lyer illusion a geometric illusion in which a differ...
psilocin n. an indolealkylamine hallucinogen that is the pr...
social instinct 1. the desire for social contact and a feel...
warm stimulus a stimulus that is above skin temperature.
exacerbation n. an increase in the severity of a disease or...
stressor n. any event, force, or condition that results in...