Visual neglect in the first weeks after a stroke in the right hemisphere.
The aim of the study was to characterize symptoms of visual neglect among patients who recently survived a stroke in the right hemisphere (RH), and to contribute to the understanding of change in symptoms during the first months after a RH stroke. Thirteen patients with a RH stroke and twenty controls were assessed by using standard neglect tests. Five patients were followed up by repetitive test sessions during the next four months. To assess more subtle symptoms, reaction-time (RT) measures derived from an experimental cue-target paradigm were included in the final test session. A high frequency of neglect symptoms was documented at the first test session. The changes in performance during the first weeks were characterized by a high inter-individual as well as a high intra-individual variability. Although the remission rate on standard tests was high in the follow-up study, the RT measures indicated sustained symptoms of visual extinction in all patients. The long-term implication of the changes of neglect symptoms during the first weeks after a stroke and signs of sustained symptoms of visual extinction calls for further longitudinal studies including a larger group of patients.
Lundervold
Astri J
AJ
Department of Biological and Medical Psychology, University of Bergen, Norway. Astri.Lundervold@psych.uib.no
Bergmann
Nina
N
Wootton
Christel
C
D000368:Aged; D000369:Aged, 80 and over; D004185:Disability Evaluation; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010468:Perceptual Disorders / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D011930:Reaction Time; D012720:Severity of Illness Index; D020521:Stroke / Q000150:complications / Q000503:physiopathology*; D014796:Visual Perception