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Abstract

When participants reach for a target, their hand can adjust to a change in target position that occurs while their eyes are in motion (the hand's automatic pilot) even though they are not aware of the target's displacement (saccadic suppression of perceptual experience). However, previous studies of this effect have displayed the target without interruption, such that the new target position remains visible during the fixation that follows the saccade. Here we test whether a change in target position that begins and ends during the saccade can be used to update aiming movements. We also ask whether such information can be acquired from two targets at a time. The results showed that participants responded to single and double target jumps even when these targets were extinguished prior to saccade termination. The results imply that the hand's automatic pilot is updated with new visual information even when the eye is in motion.

Details

Title
The hand's automatic pilot can update visual information while the eye is in motion
Author
Cameron, Brendan D; Enns, James T; Franks, Ian M; Chua, Romeo
Pages
445-54
Publication year
2009
Publication date
May 2009
Publisher
Springer Nature B.V.
ISSN
00144819
e-ISSN
14321106
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
215134140
Copyright
Springer-Verlag 2009