- The term paraschematia comes from the Greek words para (beside, near, resembling, accessory to, beyond, apart from, abnormal) and schema (form, scheme, topographic map). It translates roughly as 'inadequate mapping of space'. The term paraschématie was introduced in or shortly before 1905 by the French neurologist Pierre Bonnier (1861-1918) to denote a variant of * aschematia characterized by an inadequate representation of the space occupied by certain body parts. Pathophysiologically, paraschematia is associated with lesions affecting the right parietal lobe. Because of its subjective nature, it cannot be observed directly in affected individuals. It can be inferred, however, from drawings in which the affected individual displays an inadequacy of spatial representations. Paraschema-tia is considered a productive and subconscious manifestation of neglect. It is usually classified as a variant of the * body schema illusion. The term paraschematia is used in opposition to the terms *hyperschematia and *hyposchematia.ReferencesBonnier, P. (1905). L'aschématie. Revue Neurologique, 13, 605-609.
Dictionary of Hallucinations. J.D. Blom. 2010.
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aschematia — The term aschematia comes from the Greek words an (not) and schèma (form, scheme, or topographic map). It translates roughly as an inadequate mapping of space . The term asché matie was introduced in or shortly before 1905 by the French… … Dictionary of Hallucinations
hyperschematia — Also known as left size distortion. The term hyperschematia comes from the Greek words huper (to exceed a certain boundary) and schèma (form, scheme, topographic map). It translates roughly as overly detailed mapping of space . The term… … Dictionary of Hallucinations
hyposchematia — The term hyposchematia comes from the Greek words hupo (below, beneath) and schema (form, scheme, topographic map). It translates roughly as insufficiently detailed mapping of space . The term hyposchématie was introduced in or shortly before… … Dictionary of Hallucinations