Document Detail

Inspection time and visual-perceptual processing.
MedLine Citation:
PMID:  18191437     Owner:  NLM     Status:  MEDLINE    
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 the oculomotor variables we measured do not correlate with IT in general, but may in the case where a systematic benefit would be realized.
Tyler W Garaas; Marc Pomplun
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2008-01-08
Journal Detail:
Title:  Vision research     Volume:  48     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2008 Feb 
Date Detail:
Created Date:  2008-02-11     Completed Date:  2008-07-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  523-37     Citation Subset:  IM    
Department of Computer Science, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125-3393, USA.
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MeSH Terms
Attention / physiology*
Color Perception / physiology
Eye Movements / physiology
Field Dependence-Independence
Form Perception / physiology*
Memory, Short-Term / physiology
Photic Stimulation / methods
Psychomotor Performance / physiology
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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