Abstract
A selective motion perception deficit is seen in patients with acute midline cerebellar lesions. Patients with more lateralized acute cerebellar damage do not demonstrate such a deficit. However, as these patients were tested only between 10 and 14 days post-ictus, the stability of this perceptual deficit into the chronic phase remained undetermined. The current study extends the previous findings by showing that the motion perception deficit caused by mid-line cerebellar lesions remains permanent at least 2 years into the chronic phase. The extent and longevity of this deficit resembles that of the well known motion-blind patient LM who has a large cerebellar lesion in addition to her extensive cortical damage. Again, we propose that the mid-line cerebellar damage may produce a severe motion perception deficit by disrupting the visual-motor integration mechanisms involved in perceptual stabilization, even though cortical motion processing mechanisms are unaffected.
Original language | English (US) |
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Pages (from-to) | 2219-2224 |
Number of pages | 6 |
Journal | Vision research |
Volume | 38 |
Issue number | 14 |
DOIs | |
State | Published - Jul 1998 |
Externally published | Yes |
Keywords
- Brain lesion
- Cerebellum
- Motion perception
ASJC Scopus subject areas
- Ophthalmology
- Sensory Systems