Changes in the functional visual field during search with and without eye movements

Vision Research
Brad C Motter, Diglio A Simoni

Abstract

The size of the functional visual field (FVF) is dynamic, changing with the context and attentive demand that each fixation brings as we move our eyes and head to explore the visual scene. Using performance measures of the FVF we show that during search conditions with eye movements, the FVF is small compared to the size of the FVF measured during search without eye movements. In all cases the size of the FVF is constrained by the density of distracting items. During search without eye movements the FVF expands with time; subjects have idiosyncratic spatial biases suggesting covert shifts of attention. For search within the constraints imposed by item density, the rate of item inspection is the same across all search conditions. Array set size effects are not apparent once stimulus density is taken into account, a result that is consistent with a spatial constraint for the FVF based on the cortical separation hypothesis.

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Citations

May 8, 2009·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Brad C Motter
Oct 11, 2012·PloS One·Rainer KraehenmannMichael Kometer
Dec 14, 2011·The Quarterly Journal of Experimental Psychology : QJEP·Saeideh GhahghaeiRobert Davis
Feb 9, 2010·Attention, Perception & Psychophysics·T D Keech, L Resca
Apr 9, 2013·Vision Research·Julian M WallaceBosco S Tjan
Mar 27, 2019·Journal of Sports Sciences·Lee J MooreMark R Wilson
Sep 19, 2014·World Journal of Orthopedics·Eleftherios KellisNikolaos Kofotolis
Jul 28, 2017·Journal of the Royal Society, Interface·Tatiana A AmorJosé S Andrade
Feb 7, 2021·Psychonomic Bulletin & Review·Jeremy M Wolfe
May 27, 2021·Journal of Vision·Inês S VeríssimoChristian N L Olivers

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