inhibition (redirected from inhibitions)

inhibition /in·hi·bi·tion/ (in″hĭ-bish´un)

1. arrest or restraint of a process.

2. in psychoanalytic theory, the conscious or unconscious restraining of an impulse or desire.

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competitive inhibition  inhibition of enzyme activity in which the inhibitor (a substrate analogue) competes with the substrate for binding sites on the enzymes.

contact inhibition  inhibition of cell division and cell motility in normal animal cells when in close contact with each other.

endproduct inhibition , feedback inhibition inhibition of the initial steps of a process by an endproduct of the reaction.

noncompetitive inhibition  inhibition of enzyme activity by substances that combine with the enzyme at a site other than that utilized by the substrate.

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in·hi·bi·tion (nh-bshn, n-)

n.

1. The act of inhibiting or the state of being inhibited.

2. Something that restrains, blocks, or suppresses.

3. The conscious or unconscious restraint of a behavioral process, a desire, or an impulse.

4. Any of a variety of processes that are associated with the gradual attenuation, masking, and extinction of a previously conditioned response.

5. The condition in which or the process by which a reaction is inhibited.

6. The condition in which or the process by which an enzyme is inhibited.

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Inhibition

Referring to the moment in an Alexander lesson when the student refrains from beginning a movement in order to avoid tensing of the muscles.

Mentioned in: Alexander Technique, Rubella Test

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inhibition

[in′hibish′ən]

Etymology: L, inhibere, to restrain

1 (in psychology) the unconscious restraint of a behavioral process, usually resulting from the social or cultural forces of the environment; the condition inducing such restraint.

2 (in psychoanalysis) the process in which the superego prevents the conscious expression of an unconscious instinctual drive, thought, or urge.

3 (in physiology) the restraint, checking, or arrest of the action of an organ or cell or the reduction of a physiologic activity by antagonistic stimulation.

4 (in chemistry) the stopping or slowing of the rate of a chemical reaction.

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inhibition (in´hibish´n),

n a neurologic phenomenon associated with the transmission of an impulse across a synapse. An impulse can be blocked from passing a synapse in a reflex situation by the firing of another, more dominant nerve. It can be achieved directly by preventing the passage of an impulse along an axon, or it can be achieved by liberation of a chemical substance at the nerve ending. This chemical inhibition is demonstrated by the sympathetic-parasympathetic control over smooth muscle activity in a blood vessel. Inhibition is the restraining of a function of a tissue or organ by some nervous or hormone control. It is the opposite of
excitation.

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inhibition

arrest or restraint of a process.

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competitive inhibition

inhibition of enzyme activity by an inhibitor (a substrate analog) that competes with the substrate for binding sites on the enzymes.

contact inhibition

inhibition of cell division and cell motility in normal animal cells when in close contact with each other.

end-product inhibition

see feedback inhibition (below).

feedback inhibition

a common way of regulating enzyme activity in which the reaction product (or in the case of a biosynthetic pathway, the product of the reaction sequence) inhibits the enzyme activity. Called also end-product inhibition.

neurological inhibition

the intermittency of transmission of nervous impulses depends on variations in the balance between excitation and inhibition, the latter being either pre- or postsynaptic.

noncompetitive inhibition

inhibition of enzyme activity by substances that combine with the enzyme at a site other than that utilized by the substrate.

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inhibition

Psychiatry Behavior that reflects an unconscious defense against forbidden instinctive drives, which may interfere with or restrict specific activities. See Competitive inhibition, Disinhibition, Enzyme inhibition, Feedback inhibition, Multidrug-resistance inhibition, Outlaw inhibition, Postsynaptic inhibition, Presymptomatic inhibition, Reciprocal inhibition.