title: Dissociating temporal inhibition of return and saccadic momentum across multiple eye-movement tasks.
abstract: Saccade latencies are longer prior to an eye movement to a recently fixated location than to control locations, a phenomenon known as oculomotor inhibition of return (O-IOR). There are theoretical reasons to expect that O-IOR would vary in magnitude across different eye movement tasks, but previous studies have produced contradictory evidence. However, this may have been because previous studies have not dissociated O-IOR and a related phenomenon, saccadic momentum, which is a bias to repeat saccade programs that also influences saccade latencies. The present study dissociated the influence of O-IOR and saccadic momentum across three complex visual tasks: scene search, scene memorization, and scene aesthetic preference. O-IOR was of similar magnitude across all three tasks, while saccadic momentum was weaker in scene search.
authors.affiliation: Department of Psychology, Brigham Young University, Provo, UT, USA.
authors.forename: Steven G
authors.initials: SG
authors.lastname: Luke
authors.affiliation: Department of Psychological Sciences, Birkbeck, University of London, London, UK.
authors.forename: Tim J
authors.initials: TJ
authors.lastname: Smith
authors.affiliation: Institute for Mind and Brain, and Department of Psychology, University of South Carolina, Columbia, SC, USA.
authors.forename: Joseph
authors.initials: J
authors.lastname: Schmidt
authors.affiliation: Institute for Mind and Brain, and Department of Psychology, University of South Carolina, Columbia, SC, USA.
authors.forename: John M
authors.initials: JM
authors.lastname: Henderson
mesh_terms: D053483:Eye Movement Measurements; D005260:Female; D005403:Fixation, Ocular / Q000502:physiology; D006801:Humans; D007266:Inhibition, Psychological; D010364:Pattern Recognition, Visual / Q000502:physiology*; D011930:Reaction Time; D012438:Saccades / Q000502:physiology*; D013647:Task Performance and Analysis
keywords: O-IOR; eye movements; inhibition of return; saccadic momentum; visual scenes; visual search