Looking Forward: Comment on Morgante, Zolfaghari, and Johnson

Infancy : the Official Journal of the International Society on Infant Studies
Sarah C Creel

Abstract

Morgante et al. (in press) find inconsistencies in the time reporting of a Tobii T60XL eye tracker. Their study raises important questions about the use of the Tobii T-series in particular, and various software and hardware in general, in different infant eye tracking paradigms. It leaves open the question of the source of the inconsistencies. Here, observations from a Tobii eye tracker are presented to elucidate possible sources of timing inconsistencies, including those found by Morgante et al. The ramifications of the reported timing inconsistencies are related to various infant paradigms. The focus is on the level of concern a researcher should have if any eye tracker displays these timing characteristics, and what corrective measures may be taken. While posing no problems for some paradigms, timing inconsistencies are potentially problematic (but correctable) when assessing event-related looking behavior. Observed timing contraindicates use in fast gaze-contingent displays (<100 ms). General suggestions are made regarding timing in eye-tracked data collection.

References

Feb 5, 2003·Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc·Frans W CornelissenJohn Palmer
Feb 15, 2005·Journal of Experimental Child Psychology·Chiara TuratiFrancesca Simion
Jul 14, 2006·Developmental Medicine and Child Neurology·Siobhan GarbuttChristopher M Harris
Dec 31, 2008·Cognition·Michael C FrankScott P Johnson
May 19, 2009·The Quarterly Journal of Experimental Psychology : QJEP·Keith Rayner
Feb 18, 2011·Behavior Research Methods·Mohinish ShuklaRichard N Aslin
Sep 29, 2011·Developmental Psychology·Fani DeligianniGergely Csibra
Oct 26, 2011·Child Development·John M FranchakKaren E Adolph

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Citations

Mar 30, 2017·Medicine·Jiguo XueChenggang Zhang

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