discipline that studies how universal patterns of behavior and cognitive processes have evolved over time as a result of natural selection

phase of the sexual response cycle that involves sexual arousal

group designed to answer the research question; experimental manipulation is the only difference between the experimental and contro

group designed to answer the research question; experimental manipulation is the only difference between the experimental and control groups, so any differences between the two are due to experimental manipulation rather than chance

researcher expectations skew the results of the study

memories we consciously try to remember and recall

decrease in the conditioned response when the unconditioned stimulus is no longer paired with the conditioned stimulus

motivation that arises from external factors or rewards

facial expressions are capable of influencing our emotions

objective and verifiable observation, established using evidence collected through empirical research

recall of false autobiographical memories

able to be disproven by experimental results

activation of the sympathetic division of the autonomic nervous system, allowing access to energy reserves and heightened sensory capacity so that we might fight off a given threat or run away to safety

theory that personality is composed of five factors, including openness, conscientiousness, extroversion, agreeableness, and neuroticism

behavior is rewarded after a set amount of time