Abstract
The direction of gaze during a single-ball throwing and catching task was analyzed to generate hypotheses regarding the optical information that participants used. Five intermediate and 5 expert jugglers threw and caught a single ball continuously with 1 hand while wearing a head-mounted eye tracker to monitor their direction of gaze. Participants were instructed to throw the ball at 3 self-paced frequencies: preferred, one half of preferred, and twice preferred. Analysis of the digital eye tracker data along with the video recording of the ball and hand revealed that all participants viewed the ball at or around the ball's zenith. Intermediates varied only the mean phase of viewing across frequencies. Experts, however, varied the initiation of viewing, the point of minimum gaze to ball distance, the mean viewing phase, and the mean time between viewing and catching across frequencies. Both groups initiated the final downward movement of the hand toward the catch 89 msec after the ball's zenith. The implications of these results for the optical information for catching and expertise in a perceptual-motor task are discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 71-85 |
| Number of pages | 15 |
| Journal | Ecological Psychology |
| Volume | 13 |
| Issue number | 2 |
| State | Published - 2001 |
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ASJC Scopus subject areas
- Psychology(all)
- Experimental and Cognitive Psychology
Cite this
Eye Movements and the Selection of Optical Information for Catching. / Amazeen, Eric; Amazeen, Polemnia; Beek, Peter J.
In: Ecological Psychology, Vol. 13, No. 2, 2001, p. 71-85.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Eye Movements and the Selection of Optical Information for Catching
AU - Amazeen, Eric
AU - Amazeen, Polemnia
AU - Beek, Peter J.
PY - 2001
Y1 - 2001
N2 - The direction of gaze during a single-ball throwing and catching task was analyzed to generate hypotheses regarding the optical information that participants used. Five intermediate and 5 expert jugglers threw and caught a single ball continuously with 1 hand while wearing a head-mounted eye tracker to monitor their direction of gaze. Participants were instructed to throw the ball at 3 self-paced frequencies: preferred, one half of preferred, and twice preferred. Analysis of the digital eye tracker data along with the video recording of the ball and hand revealed that all participants viewed the ball at or around the ball's zenith. Intermediates varied only the mean phase of viewing across frequencies. Experts, however, varied the initiation of viewing, the point of minimum gaze to ball distance, the mean viewing phase, and the mean time between viewing and catching across frequencies. Both groups initiated the final downward movement of the hand toward the catch 89 msec after the ball's zenith. The implications of these results for the optical information for catching and expertise in a perceptual-motor task are discussed.
AB - The direction of gaze during a single-ball throwing and catching task was analyzed to generate hypotheses regarding the optical information that participants used. Five intermediate and 5 expert jugglers threw and caught a single ball continuously with 1 hand while wearing a head-mounted eye tracker to monitor their direction of gaze. Participants were instructed to throw the ball at 3 self-paced frequencies: preferred, one half of preferred, and twice preferred. Analysis of the digital eye tracker data along with the video recording of the ball and hand revealed that all participants viewed the ball at or around the ball's zenith. Intermediates varied only the mean phase of viewing across frequencies. Experts, however, varied the initiation of viewing, the point of minimum gaze to ball distance, the mean viewing phase, and the mean time between viewing and catching across frequencies. Both groups initiated the final downward movement of the hand toward the catch 89 msec after the ball's zenith. The implications of these results for the optical information for catching and expertise in a perceptual-motor task are discussed.
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UR - http://www.scopus.com/inward/citedby.url?scp=0035587605&partnerID=8YFLogxK
M3 - Article
VL - 13
SP - 71
EP - 85
JO - Ecological Psychology
JF - Ecological Psychology
SN - 1040-7413
IS - 2
ER -