Category: I

Unusual and unexpected sensitivity or reaction to a drug or food. A peculiar susceptibility to some foreign substance or physical agent. A way of behaving which is particular to one person. Characteristic or manner unique to an individual or group. An unusual and unexpected sensitivity exhibited by an individual to a particular drug or food.…

A state of consciousness experienced either while waking up or while falling asleep, characterized by feeling unable to move for several seconds or minutes. The individual who experiences this state is fully aware of the condition and has complete recall of the episode. Vivid and terrifying hallucinations often accompany this state of consciousness, and a…

A nonselective and irreversible monoamine oxidase inhibitor (MORI) antidepressant medication used for the treatment of depression and anxiety with or without agoraphobia. Marketed under the brand name marplan.  

Former brand name for the discontinued antihypertensive drug guanethidine.  

The practice of using legal means to commit a person to a psychiatric hospital against his or her will. In the United States, individuals must be exhibiting behavior that is dangerous to themselves or others in order to be committed; the commitment must be for evaluation only, and a court order must be received for…

Brand name for an extended-release formulation of the atypical antipsychotic drug paliperidone.  

Brand name for extended-release formulation of the alpha2-aadrenergic receptor agonist drug guanfacine.  

Preoccupation with oneself and accompanying reduction of interest in the outside world. Contrast with extraversion. Also used to indicate shyness and decreased sociability. An energy trait directed toward one’s own inner world of thoughts and feelings. A condition in which a person is excessively interested in himself or herself and his or her own mental…

Self-observation or the examination of one’s feelings, often as a result of psychotherapy. The process of examining one’s own thoughts and feelings. A detailed and sometimes obsessive mental self-examination of feelings, thoughts and motives. The observation of one’s own thoughts or feelings. The term is generally applied to this process when it occurs to an…

A defense mechanism, operating unconsciously, whereby loved or hated external objects are symbolically absorbed within oneself. The converse of projection. May serve as a defense against conscious recognition of intolerable hostile impulses. For example, in severe depression, the individual may unconsciously direct unacceptable hatred or aggression toward herself or himself. Related to the more primitive…