DISTURBANCES OF VISUAL ORIENTATION

Abstract

DISTURBANCES of visual orientation, meaning thereby an affection of the power of localizing the position in space and the distance of objects by sight alone, are among the rarer conditions due to cerebral lesions met with in civil practice. Only a relatively small number of cases in which it was a prominent symptom have been recorded, and in several of these it was complicated by serious mental degradation or by grave disturbances of speech, which made it difficult or impossible to analyse or investigate its exact nature minutely. Since in many of these cases, too, it was associated with diffuse or multiple cerebral lesions, severe arterio-sclerosis, or with senilM atrophy of the brain, it was scarcely possible to determine the exact site' of the lesions on which it might depend.