Continuous hand movement induces a far-hand bias in attentional priority

Previous research on the interaction between manual action and visual perception has focused on discrete movements or static postures and discovered better performance near the hands (the near-hand effect). However, in everyday behaviors, the hands are usually moving continuously between possible ta...

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Bibliographic Details
Published in:Attention, perception & psychophysics perception & psychophysics, 2013-05, Vol.75 (4), p.644-649
Main Authors: Festman, Yariv, Adam, Jos J., Pratt, Jay, Fischer, Martin H.
Format: Article
Language:English
Subjects:
Adult
Attention
Behavioral Science and Psychology
Bias
Biological and medical sciences
Brain
Cognitive Psychology
Computers
Discrimination (Psychology)
Discrimination Learning
Error Correction
Female
Fundamental and applied biological sciences. Psychology
Hand
Humans
Male
Motor Activity
Movement
Perception
Posture
Psychology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Sampling Studies
Spatial Ability
Vision
Vision, Ocular
Visual Discrimination
Visual Perception
Visual Stimuli
Visual task performance
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Summary:Previous research on the interaction between manual action and visual perception has focused on discrete movements or static postures and discovered better performance near the hands (the near-hand effect). However, in everyday behaviors, the hands are usually moving continuously between possible targets. Therefore, the current study explored the effects of continuous hand motion on the allocation of visual attention. Eleven healthy adults performed a visual discrimination task during cyclical concealed hand movements underneath a display. Both the current hand position and its movement direction systematically contributed to participants’ visual sensitivity. Discrimination performance increased substantially when the hand was distant from but moving toward the visual probe location (a far-hand effect). Implications of this novel observation are discussed.
ISSN:1943-3921
1943-393X
DOI:10.3758/s13414-013-0430-4