Physiognomy The attempt to determine a person’s character by analyzing his or her facial features, bodily structure, and habitual patterns of posture and movement.
Principle of conservation of energy The energy within a system is constant; therefore, it cannot be added to or subtracted from but only transformed from one form to another.
Psychophysics The systematic study of the relationship between physical and psychological events.
Reaction time The period of time between presenta- tion of and response to a stimulus.
Resonance place theory of auditory percep- tion The tiny fibers on the basilar membrane of the inner ear are stimulated by different frequencies of sound. The shorter the fiber, the higher the frequency to which it responds.