Scanpaths: the path to understanding abnormal cognitive processing in neurological disease.
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.
Kennard
Christopher
C
Division of Neuroscience and Psychological Medicine, Faculty of Medicine, Imperial College of Science, Technology and Medicine, Charing Cross Campus, London, W6 8RP, United Kingdom. c.kennard@ic.ac.uk
D001288:Attention; D003071:Cognition / Q000502:physiology*; D003072:Cognition Disorders / Q000503:physiopathology*; D005403:Fixation, Ocular / Q000502:physiology; D006801:Humans; D008568:Memory; D009422:Nervous System Diseases / Q000523:psychology*; D012438:Saccades / Q000502:physiology*