Related Experiment Video
Updated: Apr 16, 2026

VisualEyes: A Modular Software System for Oculomotor Experimentation
Published on: March 25, 2011
Online Vision as a Function of Real-Time Limb Velocity: Another Case for Optimal Windows
Andrew Kennedy1, Arindam Bhattacharjee, Steve Hansen
1a Faculty of Kinesiology and Physical Education , University of Toronto , Ontario , Canada.
Abstract:
The efficiency of online visuomotor processes was investigated by manipulating vision based on real-time upper limb velocity. Participants completed rapid reaches under two control (full vision, no vision) and three experimental visual window conditions. The experimental visual windows were early: 0.8-1.4 m/s, middle: above 1.4 m/s, and late: 1.4 to 0.8 m/s. The results indicated that endpoint consistency comparable to that of full-vision trials was observed when using vision from the early (43 ms) and middle (89 ms) windows, but vision from the middle window entailed a longer deceleration phase (i.e., a temporal cost). The late window was not useful to implement online trajectory amendments. This study provides further support for the idea of early visuomotor control, which may involve multiple online control processes during voluntary movement.
More Related Videos
Related Concept Videos
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...
Average and Instantaneous Velocity Vectors
Velocity and Position by Graphical Method
Instantaneous Velocity - I
Instantaneous Velocity - II
Velocity and Position by Integral Method
Consider an example to calculate the velocity and position from the acceleration function. A motorboat is traveling at a constant velocity of 5.0 m/s when it starts to decelerate to arrive at the dock. Its acceleration is...

