Related Experiment Videos
Field of view affects reaching, not grasping.
S J Watt1, M F Bradshaw, S K Rushton
1Department of Psychology, University of Surrey, Guildford, Surrey GU2 7XH, UK. s.watt@surrey.ac.uk
Experimental Brain Research
|January 9, 2001
Summary
Restricting field of view (FOV) with goggles alters perception of object distance but not size. This impacts reaching behaviors, highlighting FOV
Area of Science:
- Visual perception
- Motor control
- Human factors engineering
Background:
- Goggles that restrict the field of view (FOV) can alter object perception, making familiar objects appear smaller and nearer.
- Understanding these perceptual changes is crucial for optimizing visuo-motor performance in various applications.
Purpose of the Study:
- To investigate the impact of varying field sizes on distance and size estimations for reaching and grasping movements.
- To determine if the observed effects of reduced FOV are due to a loss of binocular information.
Main Methods:
- Subjects performed reaching and grasping tasks with goggles offering restricted fields of view (4°, 8°, 16°, 32°, 64°).
- No visual or haptic feedback was provided during the experiments.
- A second experiment compared binocular and monocular conditions with 8° and 64° FOV.
Main Results:
- Decreasing FOV led to a reduced reaching distance.
- Grasp size remained unaffected by changes in FOV.
- The effects of FOV on reaching and grasping were independent of binocular vision.
Conclusions:
- Reduced FOV significantly impacts reaching and grasping behaviors in dissociable ways.
- Field size is a critical factor to consider in visuo-motor performance assessments and applications.