NEUROBIOLOGY OF EYE MOVEMENTS: FROM MOLECULES TO BEHAVIOR
Copyright © 2002 by the New York Academy of Sciences
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Annals of the New York Academy of Sciences 956:242-249 (2002)
© 2002 New York Academy of Sciences
Scanpaths: The Path to Understanding Abnormal Cognitive Processing in Neurological Disease
CHRISTOPHER KENNARD
Division of Neuroscience and Psychological Medicine, Faculty of Medicine, Imperial College of Science, Technology and Medicine, Charing Cross Campus, London, W6 8RP, United Kingdom
Address for correspondence: Christopher Kennard, Division of Neuroscience and Psychological Medicine, Faculty of Medicine, Imperial College of Science, Technology and Medicine, Charing Cross Campus, St Dunstan's Road, London, W6 8RP, United Kingdom. Voice: 44 (0)20 8846 7598; fax: 44 (0)20 8846 7715. c.kennard{at}ic.ac.uk Ann. N.Y. Acad. Sci. 956: 242-249 (2002).
Scanpaths, the sequence of saccades and fixations during visual search, provide the means to study a range of cognitive activities: planning, visuospatial attention, and spatial working memory. By measuring scanpaths, we have been able to identify impairment of working memory in patients with spatial hemineglect. Scanpaths during cognitively demanding tasks indicate a defect of working memory in patients with Parkinson's disease. Studies of scanpaths in patients with homonymous hemianopia have provided the means to develop a new strategy for visual rehabilitation.
Key Words: scanpaths saccades fixations memory Parkinson's disease homonymous hemianopia
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