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dc.contributor.authorBohan, Michael
dc.contributor.authorMcConnell, Daniel
dc.contributor.authorThompson, Shelby
dc.contributor.authorChaparro, Alex
dc.date.accessioned2016-02-10T20:38:05Z
dc.date.available2016-02-10T20:38:05Z
dc.date.issued2005-08
dc.identifier.citationBohan, M., McConnell, D.S., Thompson, S., & Chaparro, A. (2005). Task and effector constraints on the kinematics of pointing movements. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 49(17), 1545-1548.
dc.identifier.otherdoi: 10.1177/154193120504901709
dc.identifier.urihttp://doi.org/fx4f3w
dc.identifier.urihttp://hdl.handle.net/10057/11796
dc.descriptionClick on the DOI link below to access the article (may not be free).
dc.description.abstractRecent work has emphasized the distinction between task and effector constraints underlying performance in Fitts' type discrete pointing tasks. We explored the relative contributions of these constraints in a cursor-pointing task by manipulating the control- display scale, thereby dissociating movement scale at the level of the hand from movement scale at the level of the cursor. Using linear regressions to predict movement time, we found that effector constraints best predict the primary transport phase of the movement, bringing the hand near the target. Visual task constraints underlie the secondary target acquisition phase of the movement. We present a reformulation of Fitts' (1954) index of difficulty, capturing the relative contributions of effector and visual task constraints.
dc.language.isoen_US
dc.relation.ispartofseriesProceedings of the Human Factors and Ergonomics Society Annual Meeting
dc.relation.ispartofseries49(17)
dc.titleTask and effector constraints on the kinematics of pointing movements
dc.typeConference paper
dc.rights.holderHuman Factors and Ergonomics Society, Inc.


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