repression

repression, in psychology: see defense mechanism; psychoanalysis.

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repression

In metabolism, a control mechanism by which a protein molecule, called a repressor, prevents the synthesis of an enzyme by binding to (and thus hindering the action of) the DNA that controls the enzyme's synthesis. Though the process has been studied mainly in microorganisms, it is believed to occur in a similar way in higher organisms. See also inhibition.

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repression

In psychoanalytic theory, the exclusion of distressing memories, thoughts, or feelings from the conscious mind. Often involving sexual or aggressive urges or painful childhood memories, these unwanted mental contents are pushed into the unconscious mind. Repression is thought to give rise to anxiety and to neurotic symptoms, which begin when a forbidden drive or impulse threatens to enter the conscious mind. Psychoanalysis seeks to uncover repressed memories and feelings through free association as well as to examine the repressed wishes released in dreams. See also unconscious.

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repression [ri′presh·ən]

(biochemistry)

The termination of enzyme synthesis when the products of the reaction catalyzed by the enzyme reach a critical concentration.

(cell and molecular biology)

Inhibition of transcription or translation due to binding of a repressor to an operator on a deoxyribonucleic acid molecule or to a specific messenger ribonucleic acid site.

(psychology)

A defense mechanism whereby ideas, feelings, or desires, in conflict with the individual's conscious self-image or motives, are unconsciously dismissed from consciousness.