Dictionary of Biological Psychology
The unilateral disturbance of body schema and subsequent unawareness of one’s disability in the absence of a primary sensory deficit is referred to as anosagnosia.
This occurs following a brain LESION, usually to the PARIETAL CORTEX, and is related to SOMATOPARAPHRENIA in which a patient may deny ownership of a body part such as a limb and claim that the body part belongs to someone else. Anosagnosia often co-occurs with HEMISPATIAL NEGLECT and, as with neglect, can be ameliorated through the use of caloric stimulation. Anosagnosia can extend to a number of deficits including the unawareness of a SCOTOMA, of blindness, of a HEMIPLEGIA or of AMNESIA.
MARLENE BEHRMANN
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