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Hitts Law? A test of the relationship between information load and movement precisionRecent technological developments have made viable a man-machine interface heavily dependent on graphics and pointing devices. This has led to new interest in classical reaction and movement time work by Human Factors specialists. Two experiments were designed and run to test the dependence of target capture time on information load (Hitt's Law) and movement precision (Fitts' Law). The proposed model linearly combines Hitt's and Fitts' results into a combination law which then might be called Hitts' Law. Subjects were required to react to stimuli by manipulating a joystick so as to cause a cursor to capture a target on a CRT screen. Response entropy and the relative precision of the capture movement were crossed in a factorial design and data obtained that were found to support the model.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Zaleski, M.
(Toronto Univ. Ontario)
Moray, N.
(Toronto Univ. Ontario)
Date Acquired
August 12, 2013
Publication Date
May 1, 1986
Publication Information
Publication: NASA. Ames Research Center 21st Annual Conference on Manual Control
Subject Category
Man/System Technology And Life Support
Accession Number
Funding Number(s)
Distribution Limits
Work of the US Gov. Public Use Permitted.
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