title: A longitudinal study of visuospatial discrimination in parkinsonian patients.
abstract: Visuospatial discrimination was evaluated longitudinally in 45 patients with idiopathic Parkinson's disease. 47 normal matched subjects served as controls. Visuospatial discrimination was assessed by means of a picture test with complex superimposed objects (Poppelreuter's test) at the beginning of the study as well as three years later. At initial evaluation the group with Parkinson's disease identified fewer objects than the control group and made more errors. Relations between performance on the visuospatial discrimination task and the main parameters of the disease were not statistically significant. At reevaluation, three years later on the same task, performance by the group with Parkinson's disease deteriorated. Longitudinal assessment of motor symptoms showed that disease progressed during the study period in 35 patients. Comparison of motor deterioration with performance on the visuospatial discrimination task showed no statistically significant relationship.
authors.affiliation: 2nd Department of Neurology, University of Thessaloniki, Greece.
authors.forename: Z
authors.initials: Z
authors.lastname: Katsarou
authors.forename: S
authors.initials: S
authors.lastname: Bostantjopoulou
authors.forename: A
authors.initials: A
authors.lastname: Alevriadou
authors.forename: G
authors.initials: G
authors.lastname: Mentenopoulos
authors.forename: X
authors.initials: X
authors.lastname: Avraam
authors.forename: G
authors.initials: G
authors.lastname: Kiosseoglou
mesh_terms: D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D004192:Discrimination, Psychological; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D010300:Parkinson Disease / Q000175:diagnosis* / Q000523:psychology; D010364:Pattern Recognition, Visual; D013028:Space Perception