Related Experiment Video
Updated: Jun 17, 2026

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes
Published on: January 19, 2024
Ocular pursuit and the estimation of time-to-contact with accelerating objects in prediction motion are controlled
Nicolas Benguigui1, Simon J Bennett
1Sport Science Department, Lab Motor Control and Perception (EA 4042), University Paris-Sud, UFR STAPS, Bâtiment 335, 91405 Orsay Cedex, France. nicolas.benguigui@u-psud.fr
Abstract:
The present study examined for the first time both the ocular and manual responses in a prediction motion (PM) task requiring participants to estimate time-to-contact (TTC) of an accelerating object. Results showed that while the ocular response initially matched well the object motion, smooth pursuit decayed towards zero following object occlusion, during which participants exhibited a saccadic response that placed the eyes in the region of the point of contact. The primary saccade was completed in advance of the object reaching the point of contact, and was best predicted by a first-order estimate of TTC (TTC1). Participants then made their manual response, which was also best predicted by TTC1. Therefore, object acceleration was not taken into account in either the ocular or manual response, with the latter occurring before the object reached the point of contact when it decelerated and after when it accelerated. Further analyses of the ocular and manual responses indicated no functional relationship and independent control. We suggest that the demand to make temporal estimates with a stationary location in PM tasks is critical in explaining the discrepancy with oculomotor research.
More Related Videos
07:24Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
Published on: August 22, 2025
13:00Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
Published on: January 23, 2017
Related Concept Videos
Real-World Applications of Space Curves
Relative Motion Analysis - Acceleration
Vector Functions and Motion: Problem Solving
Relative Motion Analysis - Velocity
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
Relative Motion Analysis using Rotating Axes - Acceleration
Time differentiation is...
Instantaneous Velocity - II