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flicker fusion

   Also found in: Wikipedia 0.02 sec.
flicker fusion [′flik·ər ‚fyü·zhən]
(physiology)
The tendency to perceive an oscillating or flickering sensory input signal as continuous when the frequency is above a specific threshold frequency.


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To address this issue, electro-retinography was used to measure the changes in retinal light sensitivity, flicker fusion frequency, and spectral sensitivity in black rockfish (Sebastes melanops) subjected to rapid decompression (from 4 atmospheres absolute [ATA] to 1 ATA) and Pacific halibut (Hippoglossus stenolepis) exposed to 15 minutes of simulated sunlight.
Objective cognitive assessments included: Critical Flicker Fusion (measures central nervous system arousal via information-processing capacity and the ability to discriminate bits of sensory information), Sternberg Short-Term Memory Scanning Task (assesses working memory), and Rapid Visual Information Processing (assesses the performance of attention mechanisms in remaining vigilant to periodically recurring events).
 
 
 
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