title: [Apraxia and autotopoagnosia without aphasia or agraphia with compulsive language activity in right hemispheric lesion].
abstract: A 75 year-old woman was admitted with a left hemiplegia resulting from an infarct in the right middle artery's territory. Her manual preference was ambiguous from early childhood. She presented with severe bilateral apraxia, autotopoagnosia, finger agnosia, and left spatial neglect. There was, however, no aphasia nor agraphia. When the patient attempted to perform gestures on order, she compulsively produced oral or written language. In this very unusual case, dominance for gesture and dominance for language were strictly independent, each ensured by one hemisphere. The patient's performances in gestual activities, especially dissociation between automatic and voluntary movements, and compulsive linguistic productions, are discussed in relation to this functional lateralization. We suggest that the propositional nature of the responses required in test conditions could activate either voluntary language in the left cerebral hemisphere, or voluntary gestures in the right. A competition between the two hemispheres could explain the patient's linguistic apraxic or behavior in response to orders. Autotopoagnosia, an uncommon symptom, could interfere with apraxia, but is not directly responsible.
authors.affiliation: Clinique Neurologique, Hôpital Beaujon, Clichy.
authors.forename: P
authors.initials: P
authors.lastname: Verstichel
authors.forename: J
authors.initials: J
authors.lastname: Cambier
authors.forename: C
authors.initials: C
authors.lastname: Masson
authors.forename: M
authors.initials: M
authors.lastname: Masson
authors.forename: B
authors.initials: B
authors.lastname: Robine
mesh_terms: D000368:Aged; D000377:Agnosia / Q000209:etiology*; D001072:Apraxias / Q000209:etiology*; D002544:Cerebral Infarction / Q000150:complications*; D003192:Compulsive Behavior / Q000209:etiology; D004292:Dominance, Cerebral; D005260:Female; D006429:Hemiplegia / Q000209:etiology; D006801:Humans; D007806:Language Disorders / Q000209:etiology*; D008279:Magnetic Resonance Imaging
vernacular_title: Apraxie et autotopoagnosie sans aphasie ni agraphie, mais avec activité compulsive de langage, au cours d'une lésion hémisphérique droite.