| stereotypic movement disorder | Motor behaviour that is repetive, often seemingly driven, and nonfunctional. This behaviour markedly interfers with normal activities or results in severe bodily self-injury. The behaviour is not due to the direct physiological effects of a substance or a general medical condition. (dsm-IV, 1994) (12 Dec 1998) |
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| neurodegenerative disorder | A type of neurological disease marked by the loss of nerve cells. See: Alzheimer's disease, Parkinson's disease. (22 May 1997) |
| neurological disorder | Disturbance in structure or function of the central nervous system resulting from developmental abnormality, disease, injury or toxin. (22 May 1997) |
| neuropsychologic disorder | A disturbance of mental function due to brain trauma, associated with one of more of the following: neurocognitive, psychotic, neurotic, behavioural, or psychophysiologic manifestations, or mental impairment. See: mental illness. (05 Mar 2000) |
| delusional disorder | A severe mental disorder characterised by the presence of delusions. The delusions may be related to paranoid, grandiose, somatic, or erotic themes. (05 Mar 2000) |
| dependent personality disorder | An individual who fears separation and engaging othhers to assume responsibility (27 Sep 1997) |
| depersonalization disorder | <psychiatry> A mental disorder or heterogeneous group of disorders (the schizophrenias or schizophrenic disorders) comprising most major psychotic disorders and characterised by disturbances in form and content of thought (loosening of associations, delusions and hallucinations) mood (blunted, flattened or inappropriate affect), sense of self and relationship to the external world (loss of ego boundaries, dereistic thinking and autistic withdrawal) and behaviour (bizarre, apparently purposeless and stereotyped activity or inactivity). The definition and clinical application of the concept of the concept of schizophrenia have varied greatly. The DSM III R criteria emphasise marked disorder of thought (delusions, hallucinations or other thought disorder accompanied by disordered affect or behaviour), deterioration from a previous level of functioning and chronicity (duration of more than 6 months), thus excluding from this classification conditions referred to by others as acute, borderline, simple or latent schizophrenia. Originally called dementia praecox and characterised as a psychosis with adolescent onset and a chronic course ending in deterioration. The term schizophrenia was introduced by Bleuler because neither early onset nor terminal deterioration is an essential feature, he emphasised the splitting and lack of personality integration seen in the disorder. Origin: Gr. Phren = mind (18 Nov 1997) |
| depressive disorder | An affective disorder manifested by either a dysphoric mood or loss of interest or pleasure in usual activities. The mood disturbance is prominent and relatively persistent. (12 Dec 1998) |
| disorder | 1. Want of order or regular disposition; lack of arrangement; confusion; disarray; as, the troops were thrown into disorder; the papers are in disorder. 2. Neglect of order or system; irregularity. "From vulgar bounds with brave disorder part, And snatch a grace beyond the reach of art." (Pope) 3. Breach of public order; disturbance of the peace of society; tumult. 4. Disturbance of the functions of the animal economy of the soul; sickness; derangement. "Disorder in the body." Synonym: Irregularity, disarrangement, confusion, tumult, bustle, disturbance, disease, illness, indisposition, sickness, ailment, malady, distemper. See Disease. Origin: Pref. Dis- + order: cf. F. Desordre. 1. To disturb the order of; to derange or disarrange; to throw into confusion; to confuse. "Disordering the whole frame or jurisprudence." (Burke) "The burden . . . Disordered the aids and auxiliary rafters into a common ruin." (Jer. Taylor) 2. To disturb or interrupt the regular and natural functions of (either body or mind); to produce sickness or indisposition in; to discompose; to derange; as, to disorder the head or stomach. "A man whose judgment was so much disordered by party spirit." (Macaulay) 3. To depose from holy orders. Synonym: To disarrange, derange, confuse, discompose. Origin: Disordered; Disordering. Source: Websters Dictionary (01 Mar 1998) |
| identity disorder | A mental disorder of childhood or adolescence in which one suffers severe distress regarding one's ability to reconcile aspects of the self into a coherent acceptable sense of self. (05 Mar 2000) |
| dysthymic disorder | Chronically depressed mood that occurs for most of the day more days than not for at least 2 years. The required minimum duration in children to make this diagnosis is 1 year. During periods of depressed mood, at least 2 of the following additional symptoms are present: poor appetite or overeating, insomnia or hypersomnia, low energy or fatigue, low self esteem, poor concentration or difficulty making decisions, and feelings of hopelessness. (dsm-IV) (12 Dec 1998) |
| immune complex disorder | An immunologic category of diseases evoked by the deposition of antigen-antibody or antigen-antibody-complement complexes on cell surfaces, with subsequent involvement of breakdown products of complement, platelets, and polymorphonuclear leukocytes, and development of vasculitis; nephritis is common. Arthus phenomenon and serum sickness are classic examples, but many other disorders, including most of the connective tissue disease's, may belong in this immunologic category; immune complex disease's can also occur during a variety of disease's of known aetiology, such as subacute bacterial endocarditis. See: autoimmune disease. Synonym: immune complex disorder, type III hypersensitivity reaction. (05 Mar 2000) |
| induced psychotic disorder | <psychiatry> A severe mental disorder brought about by a toxic agent such as a drug or hallucinogen. See: psychosis. (05 Mar 2000) |
| intermittent explosive disorder | <psychology> An uncommon disorder that begins in early childhood, characterised by repeated acts of violent, aggressive behaviour in otherwise normal persons that is markedly out of proportion to the event that provokes it. Synonym: dyscontrol, episodic dyscontrol syndrome. (05 Mar 2000) |
| isolated explosive disorder | A disorder of impulse control characterised by a single episode of failure to resist a violent, externally directed act which had serious impact on others. (05 Mar 2000) |