Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-26T14:50:29.855Z Has data issue: false hasContentIssue false
  • English
  • Français

Separating A and W effects: Pointing to targets on computer displays

Published online by Cambridge University Press:  30 August 2019

Christine L. MacKenzie  and
Evan D. Graham
Christine L. MacKenzie
Affiliation:
School of Kinesiology, Simon Fraser University, Burnaby, B.C., Canada, V5A 1S6 [email protected][email protected]/css/members/mackenzie.html
Evan D. Graham
Affiliation:
School of Kinesiology, Simon Fraser University, Burnaby, B.C., Canada, V5A 1S6 [email protected][email protected]/css/members/mackenzie.html
Get access Rights & Permissions [Opens in a new window]

Abstract

We address two main issues: the distinction between time-constrained and spatially constrained tasks, and the separable A and W effects on movement time (MT) in spatially- constrained tasks. We consider MT and 3-D kinematic data from human adults pointing to targets in human-computer interaction. These are better fit by Welford's (1968) two- part model, than Fitts' (1954; Fitts & Peterson 1964) ID model. We identify theoretical and practical implications.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 20 , Issue 2 , June 1997 , pp. 316 - 318
Copyright
1997 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)