decerebrate rigidity

rigidity of the body that occurs when the brainstem is functionally separated from the cerebral cortex, typically as a result of a brain lesion or vascular disorder. It is marked by bilateral rigid extension, adduction, and hyperpronation of the legs and arms. Also called decerebrate posturing; extensor posturing.

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Psychology term of the day

January 30th 2025

alternative behavior completion

a technique in behavior therapy for extinguishing unwanted habits by substituting an incompatible behavior for the nondesired behavior (e.g., substituting nail care for nail biting). This technique can be practiced in vivo (see in vivo desensitization) or imaginally in the therapy session or assigned as homework. It is often used as an alternative to mild aversion therapy. See also competing response training.