- 1) Interruption of awareness of oneself and one’s surroundings, lack of the ability to notice or respond to stimuli in the environment. A person may become unconscious due to oxygen deprivation, shock, central nervous system depressants such as alcohol and drugs, or injury. 2) In psychology, that part of thought and emotion that happens outside everyday awareness.
* * *1. Not conscious. 2. In psychoanalysis, the psychic structure comprising the drives and feelings of which one is unaware. SYN: insensible (1).- collective u. in jungian psychology, the combined engrams or memory potentials inherited from an individual's phylogenetic past.
* * *un·con·scious .ən-'kän-chəs adj1) not marked by conscious thought, sensation, or feeling <\unconscious motivation>2) of or relating to the unconscious3) having lost consciousness <was \unconscious for three days>un·con·scious·ly advun·con·scious·ness nunconscious n the part of mental life that is not ordinarily integrated or available to consciousness yet may be manifested as a motive force in overt behavior (as in neurosis) and is often revealed (as through dreams, slips of the tongue, or dissociated acts) compare SUBCONSCIOUS
* * *adj.1. in a state of unconsciousness.2. describing those mental processes of which a person is not aware.3. (in psychoanalysis) denoting the part of the mind that includes memories, motives, and intentions that are not accessible to awareness and cannot be made conscious without overcoming resistances. Compare subconscious.
* * *un·con·scious (ən-konґshəs) 1. insensible; incapable of responding to sensory stimuli and of having subjective experiences; see also coma and consciousness. 2. the part of the mind that is not readily accessible to conscious awareness by ordinary means but whose existence may be manifested in symptom formation, in dreams, or under the influence of drugs; it is one of the systems of Freud's topographic model of the mind. Cf. conscious and preconscious.
Medical dictionary. 2011.