| A | B |
|---|
| Iris | a ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening |
| acuity | the sharpness of vision |
| visual capture | the tendency for vision to dominate the other senses |
| grouping | the perceptual tendency to organize stimuli into coherent groups |
| biological rhythms | periodic physiological fluctuations |
| alpha waves | the relatively slow brain waves of a relaxed, awake state |
| hallucinations | false sensory experiences, such as seeing something in the absence of an external visual stimulus |
| operant conditioning | a type of learning in which behavior is strengthened if followed by a reinforcer or diminished if followed by a punisher |
| reinforcer | in operant conditioning, any event that strengthens the behavior it follows |
| recall | a measure of memory in which the person must retrieve information learned earlier, as on a fill-in-the-blank test |
| cognition | the mental activities associated with thinking, knowing, remembering, and communicating |
| insight | a sudden and often novel realization of the solution to a problem; it contrasts with strategy-based solutions |
| emotional intelligence | the ability to perceive, express, understand, and regulate emotions |
| achievement test | a test designed to assess what a person has learned |
| motivation | a need or desire that energizes and directs behavior |
| mode | the most frequently occurring score in a distribution |
| central nervous system(CNS) | the brain and spinal cord |
| conformity | adjusting one's behavior or thinking to coincide with a group standard |
| emotion | a response of the whole organism, involving physiological arousal, expressive behaviors, and conscious experience |
| syntax | the rules for combining words into grammatically sensible sentences in a given language |
