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1.
Article in English | IMSEAR | ID: sea-43082

ABSTRACT

The term "alien hand syndrome (AHS)" comprises many clinical signs of which the common features are the involuntary motor movement of the affected limb and the denial of limb ownership. It can result from several diseases involving corpus callosum or medial frontal cortex. Two major types of AHS were previously classified, callosal and frontal types. Moreover posterior subtype of which the lesions do not involve corpus callosum have been reported. In the present report, the authors describe a 57-year-old man with AHS, aggressive behavior and hemispatial neglect which are the rare manifestations of callosal damage. Neuroimaging demonstrated subacute infarction of entire corpus callosum from the rostrum to splenium. A review of the literature on these abnormalities is included in the present paper.


Subject(s)
Apraxia, Ideomotor/etiology , Cerebral Infarction/psychology , Corpus Callosum , Dyskinesias/etiology , Hand , Humans , Male , Middle Aged , Syndrome
2.
Rev. neurol. Argent ; 18(1): 12-8, 1993. ilus, tab
Article in Spanish | LILACS | ID: lil-129884

ABSTRACT

Fueron evaluados neurológica y neuropsicológicamente 6 pacientes con lesiones isquémicas temporales internas tres derechas y tres izquierdas. La evaluación cognitiva global mostró en las izquierdas normalidad de todos los parámetros estudiados y en las derechas deterioro del recuerdo y de la visuoconstrucción. En el examen más detallado del sistema mnésico episódico encontramos que las lesiones izquierdas tienen un deterioro de la memoria verbal y las derechas compromiso global pero predominando en la memoria visual. Esta asimetría verbal/visual de la memoria episódica de largo plazo se corresponde con la lateralidad hipocámpica. La falla de la memoria verbal en las lesiones derechas aparecería por un trastorno gestáltico de la organización temporo-espacial que perturbaría la estructuración de la imagen de memoria


Subject(s)
Humans , Male , Female , Middle Aged , Cerebral Infarction/complications , Hippocampus/pathology , Memory Disorders/etiology , Functional Laterality , Temporal Lobe/pathology , Cerebral Arteries/pathology , Cerebral Infarction/psychology , Memory Disorders/physiopathology , Memory Disorders/psychology , Memory, Short-Term/physiology , Occipital Lobe/pathology , Occipital Lobe , Temporal Lobe , Neuropsychological Tests/statistics & numerical data , Neuropsychological Tests/methods
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