The impact of task controllability on perceived control and cardiovascular processes


  • This work was supported by research grant WBS R-581-000-069-112 from the National University of Singapore. We thank Mr. Pan Yan for his programming assistance in the Dodgy Mouse.

Address reprint requests to: Yong Peng Why, PhD, Department of Psychology, National University of Singapore, 9 Arts Link, (117570), Singapore. E-mail:


This article examines the impact of task control on perceived control and cardiovascular processes. Fifty-eight undergraduates performed a computer task where the functionality of the computer mouse was used to manipulate task control. Results are consistent with the proposition that actual control triggers an initial physiological response which can be modified temporally later by perceived control and that male participants react psychologically faster to changes in task control than female participants.