Skip to Main content Skip to Navigation
New interface
Journal articles

Is fitts' law continuous in discrete aiming?

Abstract : The lawful continuous linear relation between movement time and task difficulty (i.e., index of difficulty; ID) in a goal-directed rapid aiming task (Fitts' law) has been recently challenged in reciprocal performance. Specifically, a discontinuity was observed at critical ID and was attributed to a transition between two distinct dynamic regimes that occurs with increasing difficulty. In the present paper, we show that such a discontinuity is also present in discrete aiming when ID is manipulated via target width (experiment 1) but not via target distance (experiment 2). Fitts' law's discontinuity appears, therefore, to be a suitable indicator of the underlying functional adaptations of the neuro-muscular-skeletal system to task properties/requirements, independently of reciprocal or discrete nature of the task. These findings open new perspectives to the study of dynamic regimes involved in discrete aiming and sensori-motor mechanisms underlying the speed-accuracy trade-off.
Document type :
Journal articles
Complete list of metadata

Cited literature [41 references]  Display  Hide  Download
Contributor : Rita Sleimen-Malkoun Connect in order to contact the contributor
Submitted on : Wednesday, October 3, 2018 - 12:48:56 PM
Last modification on : Sunday, June 26, 2022 - 1:21:34 PM
Long-term archiving on: : Friday, January 4, 2019 - 1:59:29 PM


Publication funded by an institution


Distributed under a Creative Commons Attribution 4.0 International License




Rita Sleimen-Malkoun, Jean Jacques Temprado, Raoul Huys, Viktor Jirsa, Eric Berton. Is fitts' law continuous in discrete aiming?. PLoS ONE, 2012, 7 (7), pp.e41190. ⟨10.1371/journal.pone.0041190⟩. ⟨hal-01450706⟩



Record views


Files downloads