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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: EEG correlates of Fitts's law during preparation for action
Author(s): Kourtis, Dimitrios
Sebanz, Natalie
Knoblich, Guenther
Keywords: Movement Time
Internal Model
Movement Amplitude
Contingent Negative Variation
Lateralized Readiness Potential
Issue Date: 1-Jul-2012
Date Deposited: 6-Nov-2018
Citation: Kourtis D, Sebanz N & Knoblich G (2012) EEG correlates of Fitts's law during preparation for action. Psychological Research, 76 (4), pp. 514-524.
Abstract: Humans' inability to move fast and accurately at the same time is expressed in Fitts's law. It states that the movement time between targets depends on the index of difficulty, which is a function of the target width and the inter-target distance. The present study investigated the electrophysiological correlates of Fitts's law during action planning using high-density electroencephalography. Movement times were scaled according to Fitts's law, indicating that participants could not overcome the speed-accuracy trade-off during a 1-s preparation period. Importantly, the index of difficulty of the planned movement correlated linearly with the amplitudes of the cognitive N2 and P3b components, which developed during the planning period over parieto-occipital areas. These results suggest that the difficulty of a movement during action planning is represented at a level where perceptual information about the difficulty of the ensuing action is linked to motor programming of the required movement. © 2012 The Author(s).
DOI Link: 10.1007/s00426-012-0418-z
Rights: This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
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