Psychology^intro

Ultradian rhythms one complete cycle that repeats in less than twenty-four hours, for instance different stages of sleep several times during a single night's sleep.

Unconditional positive regard complete acceptance and caring of an individual, without imposing conditions.

Unconditioned response in classical conditioning, a reflexive response elicited by an unconditioned stimulus, such as pupil contraction to bright light, without prior learning.

Unconditioned stimulus in classical conditioning, a stimulus which elicits a reflexive response.

Unconscious in Freud's theory, portion of the psyche that cannot be directly accessed by the unconscious, repressing urges, impulses and thoughts, which may filter into conscious awareness directly or in symbolic form.

Unconscious motive a term used to describe that much of (motivated) behaviour is a result of influences outside our conscious awareness, and manifests in defence mechanisms or other symbolic ways.

Unstructured interview an interview whereby the interviewer does not have pre-determined questions, but instead asks questions spontaneously as topics arise.

Utilitarianism states that what is ethically acceptable is that which produces the greatest pleasure and happiness (in comparison to pain and suffering) for the greatest number of people.