Affection; in psychiatry commonly refers to pleasure, particularly as it applies to gratifying experiences between individuals.

Persistent, unwanted idea or impulse which is considered normal when it does not markedly interfere with mental processes or emotional adjustment.

Philosophy based on the analysis of the individual's existence in the world which holds that human existence cannot be completely described in scientific terms. Existentialism also stresses the freedom and responsibility of the individual as well as the uniqueness of religious and ethical experiences and the analysis of subjective phenomena such as anxiety, guilt, and suffering. (APA, Thesaurus of Psychological Index Terms, 8th ed.)

An irrational reaction compounded of grief, loss of self-esteem, enmity against the rival and self criticism.

Health as viewed from the perspective that humans and other organisms function as complete, integrated units rather than as aggregates of separate parts.

A personality disorder manifested by a profound defect in the ability to form social relationships, no desire for social involvement, and an indifference to praise or criticism.

Psychoanalytic theory focusing on interpretation of behavior in reference to self. (From APA, Thesaurus of Psychological Terms, 1994) This elaboration of the psychoanalytic concepts of narcissism and the self, was developed by Heinz Kohut, and stresses the importance of the self-awareness of excessive needs for approval and self-gratification.

Uncontrolled release of a chemical from its containment that either threatens to, or does, cause exposure to a chemical hazard. Such an incident may occur accidentally or deliberately.

An interdisciplinary science concerned with studies of the biological bases of behavior - biochemical, genetic, physiological, and neurological - and applying these to the understanding and treatment of mental illness.