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Predictive Smooth Pursuit Eye Movements.

Eileen Kowler1, Jason F Rubinstein1, Elio M Santos1,2

  • 1Department of Psychology, Rutgers University, Piscataway, New Jersey 08854, USA; email: eileen.kowler@rutgers.edu, j.rubinstein@rutgers.edu, jie.zy.wang@rutgers.edu.

Annual Review of Vision Science
|July 9, 2019
PubMed
Summary
This summary is machine-generated.

Smooth pursuit eye movements predict future target motion, not just react to it. This predictive ability, involving anticipatory smooth eye movements (ASEM), enhances tracking accuracy and relies on brain areas like the frontal cortex.

Keywords:
anticipationanticipatory smooth eye movementsexpectationextraretinal signaleye movementsfrontal eye fieldmotionpredictionsensory motion areassmooth pursuit

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Cognitive Science

Background:

  • Smooth pursuit eye movements are crucial for maintaining visual fixation on moving objects.
  • Traditionally viewed as reactive, pursuit eye movements are increasingly recognized for their predictive capabilities.

Purpose of the Study:

  • To explore evidence supporting predictive smooth pursuit eye movements.
  • To understand the role of predictive mechanisms in compensating for sensorimotor delays.
  • To link predictive pursuit to neural underpinnings.

Main Methods:

  • Review of behavioral evidence for predictive pursuit, including anticipatory smooth eye movements (ASEM).
  • Examination of pursuit during target occlusion and under conditions of self-generated or biologically realistic motion.
  • Consideration of neural correlates in frontal and sensory motion areas.

Main Results:

  • Anticipatory smooth eye movements (ASEM) demonstrate predictive capabilities, triggered by perceptual cues or memory.
  • Predictive pursuit is evident during periods of target invisibility (occlusion).
  • Accuracy of pursuit improves with predictable or self-generated target motion.

Conclusions:

  • Smooth pursuit eye movements are not solely reactive but incorporate predictive mechanisms.
  • Predictive pursuit, supported by frontal cortex activity, mitigates sensorimotor processing delays.
  • Retinal motion is one of several cues utilized in predictive pursuit, shifting the paradigm from reactive to predictive models.