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March 1954


Author Affiliations


From the Neurological Unit, Boston City Hospital, and the Department of Neurology, Harvard Medical School.

AMA Arch NeurPsych. 1954;71(3):302-313. doi:10.1001/archneurpsyc.1954.02320390032003

THE DIFFERENCE between the disturbance of recognition produced by lesions of the left parieto-occipital region and that resulting from a similar lesion of the right side has been discussed by many authors. Varieties of agnosia usually result from a left-sided lesion, whereas damage to the right side commonly leads to lack of recognition of the left side of person and extrapersonal space, and, in a few instances, to spatial disorientation and topographic agnosia. Lange,1 Dide,2 Lenz,3 and McFie and associates,4 in noting the frequency with which disturbance of perception of spatial relationships follows right parietal lobe lesions, have proposed that the right hemisphere has some particular function in regard to spatial perception.

Denny-Brown, Meyer, and Horenstein5 have recently proposed an alternative view. From an analysis of a particularly clear-cut example of a right parietal lesion with disturbance of dressing and disregard for the left side