On crossed apraxia. Description of a right-handed apraxic patient with right supplementary motor area damage

Clelia Marchetti, Sergio Della Sala

Research output: Contribution to journalArticle

Abstract

GP, a right-handed woman, without evidence of familial left-handedness, showed clear cut bilateral ideo-motor apraxia and oro-facial apraxia after a vascular lesion of the right hemisphere, encroaching upon the fronto-mesial region. She scored normally in most other cognitive tests, including language, but showed signs of callosal disconnection, left anarchic hand and mild unilateral spatial neglect. This cognitive profile points to the possibility of praxis being localized to the right hemisphere in this right-handed patient. We argue in favour of individual variability of praxis dominance, and maintain that this dominance might be completely right-sided in some subjects. Moreover the anatomical locus of GP's lesion points to the possible role that the frontal lobes (and more specifically the Supplementary Motor Area) play in the genesis of apraxia.

Original languageEnglish
Pages (from-to)341-354
Number of pages14
JournalCortex
Volume33
Issue number2
Publication statusPublished - 1997

Fingerprint

Apraxias
Motor Cortex
Patient Rights
Sign Language
Language Tests
Functional Laterality
Women's Rights
Corpus Callosum
Frontal Lobe
Blood Vessels
Hand

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology
  • Cognitive Neuroscience
  • Neuroscience(all)

Cite this

On crossed apraxia. Description of a right-handed apraxic patient with right supplementary motor area damage. / Marchetti, Clelia; Della Sala, Sergio.

In: Cortex, Vol. 33, No. 2, 1997, p. 341-354.

Research output: Contribution to journalArticle

@article{a71f09af2963448aa8319649965ee1c6,
title = "On crossed apraxia. Description of a right-handed apraxic patient with right supplementary motor area damage",
abstract = "GP, a right-handed woman, without evidence of familial left-handedness, showed clear cut bilateral ideo-motor apraxia and oro-facial apraxia after a vascular lesion of the right hemisphere, encroaching upon the fronto-mesial region. She scored normally in most other cognitive tests, including language, but showed signs of callosal disconnection, left anarchic hand and mild unilateral spatial neglect. This cognitive profile points to the possibility of praxis being localized to the right hemisphere in this right-handed patient. We argue in favour of individual variability of praxis dominance, and maintain that this dominance might be completely right-sided in some subjects. Moreover the anatomical locus of GP's lesion points to the possible role that the frontal lobes (and more specifically the Supplementary Motor Area) play in the genesis of apraxia.",
author = "Clelia Marchetti and {Della Sala}, Sergio",
year = "1997",
language = "English",
volume = "33",
pages = "341--354",
journal = "Cortex",
issn = "0010-9452",
publisher = "Masson SpA",
number = "2",

}

TY - JOUR

T1 - On crossed apraxia. Description of a right-handed apraxic patient with right supplementary motor area damage

AU - Marchetti, Clelia

AU - Della Sala, Sergio

PY - 1997

Y1 - 1997

N2 - GP, a right-handed woman, without evidence of familial left-handedness, showed clear cut bilateral ideo-motor apraxia and oro-facial apraxia after a vascular lesion of the right hemisphere, encroaching upon the fronto-mesial region. She scored normally in most other cognitive tests, including language, but showed signs of callosal disconnection, left anarchic hand and mild unilateral spatial neglect. This cognitive profile points to the possibility of praxis being localized to the right hemisphere in this right-handed patient. We argue in favour of individual variability of praxis dominance, and maintain that this dominance might be completely right-sided in some subjects. Moreover the anatomical locus of GP's lesion points to the possible role that the frontal lobes (and more specifically the Supplementary Motor Area) play in the genesis of apraxia.

AB - GP, a right-handed woman, without evidence of familial left-handedness, showed clear cut bilateral ideo-motor apraxia and oro-facial apraxia after a vascular lesion of the right hemisphere, encroaching upon the fronto-mesial region. She scored normally in most other cognitive tests, including language, but showed signs of callosal disconnection, left anarchic hand and mild unilateral spatial neglect. This cognitive profile points to the possibility of praxis being localized to the right hemisphere in this right-handed patient. We argue in favour of individual variability of praxis dominance, and maintain that this dominance might be completely right-sided in some subjects. Moreover the anatomical locus of GP's lesion points to the possible role that the frontal lobes (and more specifically the Supplementary Motor Area) play in the genesis of apraxia.

UR - http://www.scopus.com/inward/record.url?scp=0030814042&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030814042&partnerID=8YFLogxK

M3 - Article

C2 - 9220264

AN - SCOPUS:0030814042

VL - 33

SP - 341

EP - 354

JO - Cortex

JF - Cortex

SN - 0010-9452

IS - 2

ER -