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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1998-3-30
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pubmed:abstractText |
A random-dot field undergoing counterphase flicker paradoxically appears to move in the same direction as head and eye movements, i.e. opposite to the optic-flow field. The effect is robust and occurs over a wide range of flicker rates and pixel sizes. The phenomenon can be explained by reversed phi motion caused by apparent pixel movement between successive retinal images. The reversed motion provides a positive feedback control of the display, whereas under normal conditions retinal signals provide a negative feedback. This altered polarity invokes self-sustaining eye movements akin to involuntary optokinetic nystagmus.
|
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:status |
MEDLINE
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pubmed:issn |
0301-0066
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
26
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
823-30
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading | |
pubmed:year |
1997
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pubmed:articleTitle |
Reversed visual motion and self-sustaining eye oscillations.
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pubmed:affiliation |
Institute of Biophysics, University of Freiburg, Germany. spillman@ruf.uni-freiburg.de
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|