What Does Eye-Blink Rate Variability Dynamics Tell Us About Cognitive Performance?

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ID: 15941
2017
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Ranked #32 of 106 articles by views in Frontiers in human neuroscience

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Abstract
Cognitive performance is defined as the ability to utilize knowledge, attention, memory, and working memory. In this study, we briefly discuss various markers that have been proposed to predict cognitive performance. Next, we develop a novel approach to characterize cognitive performance by analyzing eye-blink rate variability dynamics. Our findings are based on a sample of 24 subjects. The subjects were given a 5-min resting period prior to a 10-min IQ test. During both stages, eye blinks were recorded from Fp1 and Fp2 electrodes. We found that scale exponents estimated for blink rate variability during rest were correlated with subjects' performance on the subsequent IQ test. This surprising phenomenon could be explained by the person to person variation in concentrations of dopamine in PFC and accumulation of GABA in the visual cortex, as both neurotransmitters play a key role in cognitive processes and affect blinking. This study demonstrates the possibility that blink rate variability dynamics at rest carry information about cognitive performance and can be employed in the assessment of cognitive abilities without taking a test.
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Authors Paprocki, Rafal;Lenskiy, Artem;
Journal Frontiers in human neuroscience
Year 2017
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URL
http://journal.frontiersin.org/article/10.3389/fnhum.2017.00620/full
Keywords Keywords not found

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