Reappearance of the visual percept after intentional blinking in a patient with Balint's syndrome.
We present a patient with Balint's syndrome who complained of fading of the scenes under visual fixation. When he intentionally blinked, the faded visual percept reappeared. The disappearance of the visual percept may be explained as the result of either unstable visual fixation or of saturation of the visual pathways. The role of blinking in reviving the visual percept may be explained accordingly as causing a refixation of the target under visual fixation or as resetting the visual pathways for visual processing.
Gottlieb
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D
Neurology Services, Spaulding Rehabilitation Hospital, Boston, Massachusetts 02114.
Calvanio
R
R
Levine
D N
DN
D000368:Aged; D000369:Aged, 80 and over; D001767:Blinking; D002544:Cerebral Infarction / Q000503:physiopathology; D005133:Eye Movements; D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D013028:Space Perception / Q000502:physiology*; D013577:Syndrome; D014786:Vision Disorders / Q000503:physiopathology*; D014795:Visual Pathways; D014796:Visual Perception