Judgments of Speed of Self-Motion: Modeling the Relative Effects of Speed and Altitude Change

Authors

John M. Flach, Wright State University - Main CampusFollow
Asad Ali Junaid
Rik Warren

Document Type

Conference Proceeding

Publication Date

9-2004

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Abstract

Empirical studies consistently show that judgments of the speed of self-motion are influenced by changes in the altitude of an observer. In general, a given actual speed is judged to be relatively faster from a lower altitude and relatively slower from a higher altitude. Similarly, loss of altitude can be accompanied by a false perception of increasing speed, while increases in altitude can be accompanied by a false perception of loss in speed. The direction of these effects is consistent with the Global Optical Flow Rate (GOFR) Hypothesis. However, the pattern of effects is not proportional to the ratio of velocity to altitude as predicted by the GOFR Hypothesis. An alternative model is presented that predicts additive effect of speed and altitude changes on speed perception.

Comments

Presented at the Human Factors and Ergonomics Society's 48th Annual Meeting, New Orleans, LA, September 20-24, 2004.

Repository Citation

Flach, J. M., Junaid, A. A., & Warren, R. (2004). Judgments of Speed of Self-Motion: Modeling the Relative Effects of Speed and Altitude Change. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 48 (16), 1923-1927.
https://corescholar.libraries.wright.edu/psychology/308

DOI

10.1177/154193120404801628