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Related Experiment Video

Updated: Apr 21, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
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Directional interactions between current and prior saccades.

Stephanie A H Jones1, Christopher D Cowper-Smith1, David A Westwood1

  • 1Action Lab, School of Health and Human Performance, Dalhousie University Halifax, NS, Canada.

Frontiers in Human Neuroscience
|November 13, 2014
PubMed
Summary
This summary is machine-generated.

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Prior saccade direction influences current eye movement speed. Repeating saccade direction speeds up reaction times, especially without visual placeholders or when guided by central arrows.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Ophthalmology

Background:

  • Understanding how previous eye movements influence subsequent ones is crucial for modeling visual attention and motor control.
  • The return-to-center movement in traditional saccade paradigms may confound the effects of prior saccade direction.
  • Prior research indicated that repeated saccade directions can reduce saccadic reaction times.

Purpose of the Study:

  • To investigate if the effect of prior saccade direction on saccadic reaction time persists in paradigms minimizing return-to-center movements.
  • To examine the influence of visual placeholders and centrally presented directional cues on this effect.
  • To explore the temporal dynamics and contributing factors (sensory, motor, environmental) of saccadic adaptation.

Main Methods:

Keywords:
central cueperipheral cuerandom walk paradigmsaccade latencysequential saccades

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Last Updated: Apr 21, 2026

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  • A sequential saccade paradigm was employed with three conditions: peripheral targets (PT) without placeholders, PT with placeholders, and centrally presented arrows (CA).
  • Participants executed continuous saccades, with reaction times measured for each saccade.
  • The study analyzed the relationship between current saccade latency (n) and the direction of preceding saccades (n-1 to n-5).

Main Results:

  • Saccadic reaction times were reduced when the immediately preceding saccade (n-1) matched the current saccade direction in both the PT without placeholders and CA conditions.
  • The influence of prior saccade direction on reaction time varied when considering saccades further back than the immediately preceding one (n-x, where x > 1).
  • The presence of visual placeholders did not consistently yield the same reduction in saccadic reaction time based on prior saccade direction.

Conclusions:

  • The findings suggest that the motor planning of eye movements is influenced by recent saccadic history, particularly when visual context is minimal or directionally cued.
  • Multiple, dynamic mechanisms, including sensory, motor, and environmental factors, likely contribute to the observed effects on saccade latency.
  • Future research should further elucidate the interplay of these factors in shaping eye movement behavior.