The programming of sequences of saccades

Saccadic eye movements move the high-resolution fovea to point at regions of interest. Saccades can only be generated serially (i.e., one at a time). However, what remains unclear is the extent to which saccades are programmed in parallel (i.e., a series of such moments can be planned together) and how far ahead such planning occurs. In the current experiment, we investigate this issue with a saccade contingent preview paradigm. Participants were asked to execute saccadic eye movements in response to seven small circles presented on a screen. The extent to which participants were given prior information about target locations was varied on a trial-by-trial basis: participants were aware of the location of the next target only, the next three, five, or all seven targets. The addition of new targets to the display was made during the saccade to the next target in the sequence. The overall time taken to complete the sequence was decreased as more targets were available up to all seven targets. This was a result of a reduction in the number of saccades being executed and a reduction in their saccade latencies. Surprisingly, these results suggest that, when faced with a demand to saccade to a large number of target locations, saccade preparation about all target locations is carried out in parallel.

[1]  Aditya Murthy,et al.  Is saccade averaging determined by visual processing or movement planning? , 2012, Journal of neurophysiology.

[2]  C. J. Erkelens,et al.  Control of fixation duration in a simple search task , 1996, Perception & psychophysics.

[3]  S. P. Arun,et al.  Reading Increases the Compositionality of Visual Word Representations , 2019, bioRxiv.

[4]  Heike Weber,et al.  Effects of pre-cues on voluntary and reflexive saccade generation II. Pro-cues for anti-saccades , 1998, Experimental Brain Research.

[5]  D. Ballard,et al.  Task constraints in visual working memory , 1997, Vision Research.

[6]  Eugene McSorley,et al.  The role of fixation disengagement in the parallel programming of sequences of saccades , 2019, Experimental Brain Research.

[7]  Jillian H. Fecteau,et al.  Salience, relevance, and firing: a priority map for target selection , 2006, Trends in Cognitive Sciences.

[8]  Eileen Kowler,et al.  Dynamic allocation of visual attention during the execution of sequences of saccades , 2004, Vision Research.

[9]  Yuichi Murai,et al.  Visual imageries of Shakespeare’s plays , 2009, J. Vis..

[10]  M. Land,et al.  The Roles of Vision and Eye Movements in the Control of Activities of Daily Living , 1998, Perception.

[11]  W. Becker,et al.  An analysis of the saccadic system by means of double step stimuli , 1979, Vision Research.

[12]  E Zimmermann,et al.  Perception during double-step saccades , 2018, Scientific Reports.

[13]  Thérèse Collins,et al.  The planning of a sequence of saccades in pro- and antisaccade tasks: Influence of visual integration time and concurrent motor processing , 2008, Brain Research.

[14]  R. Walker,et al.  A model of saccade generation based on parallel processing and competitive inhibition , 1999, Behavioral and Brain Sciences.

[15]  B. Fischer,et al.  The recognition and correction of involuntary prosaccades in an antisaccade task , 1999, Experimental Brain Research.

[16]  Eckart Zimmermann,et al.  Visual mislocalization during double-step saccades , 2015, Front. Syst. Neurosci..

[17]  Eugene McSorley,et al.  The parallel programming of voluntary and reflexive saccades , 2006, Vision Research.

[18]  D. Ballard,et al.  Eye movements in natural behavior , 2005, Trends in Cognitive Sciences.

[19]  Eileen Kowler,et al.  Attention during sequences of saccades along marked and memorized paths , 2009, Vision Research.

[20]  D. E. Irwin,et al.  Our Eyes do Not Always Go Where we Want Them to Go: Capture of the Eyes by New Objects , 1998 .

[21]  M. Masson.  Using confidence intervals for graphically based data interpretation. , 2003, Canadian journal of experimental psychology = Revue canadienne de psychologie experimentale.

[22]  Ralf Engbert,et al.  Eye movements in a sequential scanning task: evidence for distributed processing. , 2012, Journal of vision.

[23]  Eugene McSorley,et al.  The Concurrent Programming of Saccades , 2016, PloS one.

[24]  Maria Concetta Morrone,et al.  Visual mislocalization during saccade sequences , 2014, Experimental Brain Research.

[25]  J. Theeuwes,et al.  Programming of endogenous and exogenous saccades: evidence for a competitive integration model. , 2002, Journal of experimental psychology. Human perception and performance.

[26]  Alexander Pollatsek,et al.  Using E-Z Reader to simulate eye movements in nonreading tasks: a unified framework for understanding the eye-mind link. , 2012, Psychological review.

[27]  C. Koch,et al.  A saliency-based search mechanism for overt and covert shifts of visual attention , 2000, Vision Research.

[28]  J. Findlay,et al.  Saccade target selection in visual search: the effect of information from the previous fixation , 2001, Vision Research.

[29]  P. Viviani,et al.  Saccadic eye movements to peripherally discriminated visual targets. , 1982, Journal of experimental psychology. Human perception and performance.

[30]  M. Land.  Eye movements and the control of actions in everyday life , 2006, Progress in Retinal and Eye Research.

[31]  M. Schlag-Rey,et al.  Primate antisaccades. I. Behavioral characteristics. , 1998, Journal of neurophysiology.

[32]  R. Klein,et al.  A Model of Saccade Initiation Based on the Competitive Integration of Exogenous and Endogenous Signals in the Superior Colliculus , 2001, Journal of Cognitive Neuroscience.

[33]  Heiner Deubel,et al.  Properties of attentional selection during the preparation of sequential saccades , 2007, Experimental Brain Research.

[34]  Stavroula Kousta.  The disordered mind , 2012, Trends in Cognitive Sciences.

[35]  John M. Findlay,et al.  Foveal stimulation and saccadic latencies , 2003, Experimental Brain Research.

[36]  J. Theeuwes,et al.  Top-down versus bottom-up attentional control: a failed theoretical dichotomy , 2012, Trends in Cognitive Sciences.

[37]  D. Burr,et al.  Changes in visual perception at the time of saccades , 2001, Trends in Neurosciences.

[38]  Reinhold Kliegl,et al.  SWIFT: a dynamical model of saccade generation during reading. , 2005, Psychological review.

[39]  Dorine Vergilino,et al.  Reference frames in reading: evidence from visually and memory-guided saccades , 2001, Vision Research.

[40]  J. Theeuwes,et al.  Oculomotor capture and Inhibition of Return: Evidence for an oculomotor suppression account of IOR , 2002, Psychological research.

[41]  Frans A. J. Verstraten,et al.  Saccades Toward the Target Are Planned as Sequences Rather Than as Single Steps , 2013, Psychological science.

[42]  Madhuri Behari,et al.  Queuing of Concurrent Movement Plans by Basal Ganglia , 2013, The Journal of Neuroscience.

[43]  John M. Findlay,et al.  Between-object and within-object saccade programming in a visual search task , 2006, Vision Research.

[44]  Robert M. McPeek,et al.  Concurrent processing of saccades in visual search , 2000, Vision Research.

[45]  K. Rayner.  The 35th Sir Frederick Bartlett Lecture: Eye movements and attention in reading, scene perception, and visual search , 2009, Quarterly journal of experimental psychology.

[46]  P. E. Hallett,et al.  Primary and secondary saccades to goals defined by instructions , 1978, Vision Research.

[47]  D. Burr,et al.  Selective depression of motion sensitivity during saccades. , 1982, The Journal of physiology.