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Updated: May 16, 2026
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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
Integration of alternating monocular samples during goal-directed aiming
Steve Hansen1, Spencer J Hayes, Simon J Bennett
1Nipissing University, North Bay, Ontario, Canada.
Motor Control
|November 17, 2012
Summary
Interocular delay in vision impacts manual aiming. Introducing delays between alternating eye samples slowed movement and reduced peak velocity, suggesting a strategy to maintain accuracy.
Area of Science:
- Vision science
- Motor control
- Human factors
Background:
- Interocular delay, the time difference in visual input between eyes, can affect motor performance.
- Manual aiming tasks require precise hand movements to reach a target.
Purpose of the Study:
- To investigate the kinematic effects of interocular delay during a manual aiming task.
- To understand how visual information processing is altered by delayed input to alternating eyes.
Main Methods:
- Participants performed a manual aiming task under binocular, monocular, and alternating monocular vision.
- Alternating monocular vision included conditions with 0ms, 25ms, and 50ms interocular delay.
- Movement kinematics such as movement time, peak velocity, and acceleration phases were analyzed.
Main Results:
- Interocular delay significantly increased movement time by prolonging acceleration and deceleration phases.
- Peak velocity during aiming was reduced under delayed conditions.
- Terminal aiming accuracy was preserved despite kinematic changes.
Conclusions:
- The observed kinematic changes reflect a strategic adaptation to maintain aiming accuracy under visual informational perturbation.
- The motor system adjusts movement execution in response to interocular delays, prioritizing endpoint accuracy.
- Task-specific visual information processing dictates the behavioral response to interocular delays.
