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The Effects Of Alcohol On Different Classes Of Motion Perception, Steven J. Matson
The Effects Of Alcohol On Different Classes Of Motion Perception, Steven J. Matson
Electronic Thesis and Dissertation Repository
We used a psychophysical approach to investigate how alcohol affected visual sensitivity to perceive different classes of motion. Visual sensitivities were measured in both a non-alcohol and an alcohol condition for three classes of motion: Minimum Motion, Simple Motion, and Complex Motion. Perceptual thresholds, taken as the degree of motion at which an observer responded correctly with an accuracy of 75%, or Weber fractions were compared between the non-alcohol and the alcohol conditions. For Simple and Complex motion, similar comparisons were made as a function of speed (e.g., 2°s-1, 6°s-1, and 12°s-1). Perceptual thresholds …