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The effect of distance on reaction time in aiming movements

Munro, H., Plumb, M.S., Wilson, A.D., Williams, J.H.G. and Mon-Williams, M. (2007) The effect of distance on reaction time in aiming movements. Experimental Brain Research, 183 (2). pp. 249-257. ISSN 0014-4819

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Target distance affects movement duration in aiming tasks but its effect on reaction time (RT) is poorly documented. RT is a function of both preparation and initiation. Experiment 1 pre-cued movement (allowing advanced preparation) and found no influence of distance on RT. Thus, target distance does not affect initiation time. Experiment 2 removed pre-cue information and found that preparing a movement of increased distance lengthens RT. Experiment 3 explored movements to targets of cued size at non-cued distances and found size altered peak speed and movement duration but RT was influenced by distance alone. Thus, amplitude influences preparation time (for reasons other than altered duration) but not initiation time. We hypothesise that the RT distance effect might be due to the increased number of possible trajectories associated with further targets: a hypothesis that can be tested in future experiments.

Item Type: Article
Copyright, Publisher and Additional Information: © Springer-Verlag 2007. This is an author produced version of a paper published in 'Experimental Brain Research'. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: movement; reaction time; preparation; Fitts' law; aiming
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Psychology (Leeds) > Cognitive Psychology (Leeds)
The University of Leeds > Faculty of Biological Sciences (Leeds) > Institute of Membrane and Systems Biology (Leeds) > Cardiovascular and Sports Sciences Group (Leeds)
Depositing User: Repository Officer
Date Deposited: 19 Jun 2009 09:05
Last Modified: 08 Feb 2013 17:06
Published Version: http://dx.doi.org/10.1007/s00221-007-1040-y
Status: Published
Publisher: Springer
Identification Number: 10.1007/s00221-007-1040-y
URI: http://eprints.whiterose.ac.uk/id/eprint/8659

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