astasia-abasia


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Related to astasia-abasia: palinopsia

astasia

 [as-ta´zhah]
motor incoordination with inability to stand. adj., adj astat´ic.
astasia-aba´sia motor incoordination with an inability to stand or walk despite normal ability to move the legs when sitting or lying down, a form of hysterical ataxia.

a·sta·si·a-a·ba·si·a

(ă-stā'zē-ă-ă-bā'zē-ă),
The inability to either stand or walk in a normal manner; the gait is bizarre and is not suggestive of a specific organic lesion; often the patient sways wildly and nearly falls, but recovers at the last moment; a symptom of hysteria-conversion reaction.
Synonym(s): Blocq disease

astasia-abasia

a form of ataxia in which the patient is unable to stand or walk because of lack of motor coordination but is able to carry out natural leg movements when sitting or lying down. This term is often used to describe psychogenic gait disturbances. Also called abasia-astasia.

astasia-abasia

The inability to stand or walk despite possessing good motor strength and conserved voluntary coordination. Symptomatic astasia-abasia has been associated with lesions affecting the pontomesencephalic region, thalamus, corpus callosum, or cingulate cortex.
Aetiology Usually psychogenic, less commonly organic (e.g., alcohol-induced).
Pathogenesis Uncertain; organic (i.e., not psychogenic) astasia-abasia has been linked to hyperperfusion (by SPECT) of the mesencephalic and subthalamic locomotor regions of the dorsal brainstem and subthalamus, and abnormal neural activity.

a·sta·si·a-a·ba·si·a

(ă-stā'zē-ă-ă-bā'zē-ă)
Inability to stand or walk in a normal manner; the gait is bizarre and often the patient sways and nearly falls, but recovers at the last moment; a symptom of hysteria-conversion reaction.
Synonym(s): Blocq disease.

Blocq,

Paul O., French physician, 1860-1896.
Blocq disease - the inability to either stand or walk in the normal manner. Synonym(s): astasia-abasia

astasia

motor incoordination with inability to stand.

astasia-abasia
inability or refusal to stand or walk although the legs are otherwise under control.