Voluntary and Automatic Visual Spatial Shifts of Attention in Parkinsons Disease: An Analysis of Costs and Benefits

Visual spatial shifts of attention were investigated in 13 patients suffering from Parkinsons disease and 20 control subjects. Attention was directed towards a target location with peripheral or central cues at varying SOAs in two separate experiments. A benefit and cost analysis was conducted on re...

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Bibliographic Details
Published in:Journal of clinical and experimental neuropsychology 2001-10, Vol.23 (5), p.662-670
Main Authors: Pollux, Petra M.J., Robertson, Colin
Format: Article
Language:English
Subjects:
Adult
Adult and adolescent clinical studies
Aged
Attention - physiology
Biological and medical sciences
Brain - physiopathology
Cues
Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases
Female
Humans
Male
Medical sciences
Middle Aged
Neurology
Organic mental disorders. Neuropsychology
Parkinson Disease - physiopathology
Parkinson Disease - psychology
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Reaction Time
Space Perception
Task Performance and Analysis
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Summary:Visual spatial shifts of attention were investigated in 13 patients suffering from Parkinsons disease and 20 control subjects. Attention was directed towards a target location with peripheral or central cues at varying SOAs in two separate experiments. A benefit and cost analysis was conducted on reaction times. The results of the central cueing task showed that in comparison with control subjects, costs of invalid cueing were reduced in patients. Results of the peripheral cueing task revealed that although the cueing effect (validin valid) was similar for patients and controls, the effect of valid cueing (neutral valid) was greater in patients. The effects observed in both tasks were explained as an impaired ability of patients with Parkinsons disease to maintain attention.
ISSN:1380-3395
1744-411X
DOI:10.1076/jcen.23.5.662.1238