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Alen Hajnal
09-30-2007, 11:23 AM
Dear listmembers,

I am currently conducting an experiment that requires people to run on a treadmill until they get tired. Participants self-report their level of exhaustion on a scale of 1 to 10, 1 being not tired at all, 10 being completely exhausted. They are instructed to stop running when they reach an exhaustion level of 8.

The purpose of the study is to test whether there is any influence of physical fatigue on the visual perception of surface slant. Previous research by Dennis Proffitt (and others) has shown that people tend to overestimate surface slant after a tiresome outdoors jogging session as compared to a baseline measured in a pretest. My experiment is an attempt to replicate this finding using a treadmill.

What would be an objective measure of physical exhaustion in this situation?
Heartrate? Change in breathing patterns? Any other physiological measure?

Any suggestions are welcome.

For more details on the original study check out this article:

Proffitt, D. R., Bhalla, M., Gossweiler, R. & Midgett, J. (1995). Perceiving geographical slant. Psychonomic Bulletin & Review, 2(4), p.409-428.


Many thanks,


********************
Alen Hajnal, PhD
Postdoctoral Fellow
Department of Psychological and Brain Sciences
University of Louisville
email#1: alen.hajnal@louisville.edu
email#2: alen.hajnal@gmail.com
phone:+1 (502) 852-3850
web: http://louisville.edu/~a0hajn01/