Inspection time and visual-perceptual processing

Vision Research
Tyler W Garaas, Marc Pomplun

Abstract

Inspection time (IT) is the most popular simple psychometric measure that is used to account for a large part of the variance in human mental ability, with the estimated corrected correlation between IT and IQ being -0.50. In this study, we investigate the relationship between IT and the performance and oculomotor variables measured during three simple visual tasks. Participants' ITs were first measured using a slight variation of the standard IT task, which was followed by the three simple visual tasks that were designed to test participants' visual-attentional control and visual working memory under varying degrees of difficulty; they included a visual search task, a comparative visual search task, and a visual memorization task. Significant correlations were found between IT and performance variables for each of the visual tasks. The implications of the correlation between IT and performance-related variables are discussed. Oculomotor variables on the other hand only correlated significantly with IT during the retrieval phase of the visual memorization task, which is likely a product of differences in participants' ability to memorize objects during the loading phase of the experiment. This leads us to the conclusion that th...Continue Reading

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Citations

Jul 29, 2009·Human Psychopharmacology·Ana L C ZaninottoSabine Pompéia
Oct 7, 2017·Frontiers in Neurology·Essie LowTissa Wijeratne
Jan 12, 2017·NPJ Science of Learning·Elsbeth Stern

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