Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning

Foerster RM, Schneider WX (2015)
Cognitive Processing 16(Suppl. 1): 227-231.

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Journal Article | Published | English
Abstract
During object-based sensorimotor tasks, humans look at target locations for subsequent hand actions. These anticipatory eye movements or guiding fixations seem to be necessary for a successful perfor- mance. By practicing such a sensorimotor task, humans become faster and perform fewer guiding fixations (Foer- ster and Schneider, In Prep; Foerster et al. in J Vis 11(7):9:1–16, 2011). We aimed at clarifying whether this decrease in guiding fixations is the cause or effect of faster task completion time. Participants may learn to use less visual input (fewer fixations) allowing shorter completion times. Alternatively, participants may speed up their hand movements (e.g., more efficient motor control) leaving less time for visual intake. The latter would imply that the number of fixations is directly connected to task speed. We investigated the relationship between the number of fixa- tions and task speed in a computerized version of the number connection task (Foerster and Schneider in Ann N Y Acad Sci 2015. doi:10.1111/nyas.12729). Eye move- ments were recorded while participants clicked in ascend- ing order on nine numbered circles. In 90 learning trials, they clicked the sequence with a constant spatial configu- ration as fast as possible. In the subsequent experimental phase, they should perform 30 trials again under high- speed instruction and 30 trials under slow-speed instruc- tion. During slow-speed instruction, fixation rates were & Rebecca M. Foerster rebecca.foerster@uni-bielefeld.de 1 Department of Psychology, Bielefeld University, Bielefeld, Germany 2 Cognitive Interaction Technology - Center of Excellence (CITEC), Bielefeld University, P. O. Box 100131, 33501 Bielefeld, Germany lower with longer fixation durations and more fixations were performed than during high-speed instruction. The results suggest that the number of fixations depends on both the need for visual intake and task completion time. It seems that the decrease in anticipatory eye movements through sensorimotor learning is at the same time a result and a cause of faster task performance.
Publishing Year
Conference
International Conference on Spatial Cognition
Location
Rome, Italy
Conference Date
2015-09-06 – 2015-09-11
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Foerster RM, Schneider WX. Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning. Cognitive Processing. 2015;16(Suppl. 1):227-231.
Foerster, R. M., & Schneider, W. X. (2015). Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning. Cognitive Processing, 16(Suppl. 1), 227-231.
Foerster, R. M., and Schneider, W. X. (2015). Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning. Cognitive Processing 16, 227-231.
Foerster, R.M., & Schneider, W.X., 2015. Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning. Cognitive Processing, 16(Suppl. 1), p 227-231.
R.M. Foerster and W.X. Schneider, “Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning”, Cognitive Processing, vol. 16, 2015, pp. 227-231.
Foerster, R.M., Schneider, W.X.: Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning. Cognitive Processing. 16, 227-231 (2015).
Foerster, Rebecca M., and Schneider, Werner X. “Anticipatory eye movements in sensorimotor actions: On the role of guiding fixations during learning”. Cognitive Processing 16.Suppl. 1 (2015): 227-231.
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