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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1989-4-18
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pubmed:abstractText |
Flashblindness was measured in rhesus monkeys performing a visual detection task. Stimulus field subtense was 3.5 degrees, and mean luminance was 10 cd.m-2. Single-pulse laser exposures (doubled Nd:glass, 530-nm wavelength, 20-ns pulsewidth) were presented in Maxwellian-view and formed a 12.5 degrees diameter spot centered on the fovea. The independent variables were: test grating contrast (10% and maximum contrast); test grating spatial frequency (1, 4, 12 c.deg-1); and averaged laser exposure energy (1-94% retinal maximum permissible exposure). The dependent variable was flashblindness, operationally defined as the time between a laser exposure and the first response in a pair of consecutive correct responses (referred to as "time to criterion"). Time to criterion decreased as the contrast of the grating increased. The longest times to criterion were at a spatial frequency of 12 c.deg-1, next longest at 1 c.deg-1, and shortest at 4 c.deg-1. Both the mean and S.E.M. of times to criterion increased with the laser exposure energy.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0095-6562
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
60
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
34-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2923592-Animals,
pubmed-meshheading:2923592-Behavior, Animal,
pubmed-meshheading:2923592-Blindness,
pubmed-meshheading:2923592-Lasers,
pubmed-meshheading:2923592-Macaca mulatta,
pubmed-meshheading:2923592-Maximum Allowable Concentration,
pubmed-meshheading:2923592-Photic Stimulation,
pubmed-meshheading:2923592-Time Factors
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pubmed:year |
1989
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pubmed:articleTitle |
Behavioral measurement of laser flashblindness in rhesus monkeys.
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pubmed:affiliation |
Technology Services Division, KRUG International, San Antonio, TX 78279-0644.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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