Psychophysical methods and life-span changes in visual illusions.
Research designed to establish the relationship between chronological age and visual distortion has produced reliable but contradictory findings. It is proposed that the contradictions cannot be resolved by better experimental techniques; that laws do not exist in nature independently of the observer, and that psychological scientists must include the observer and the measuring device as integral components of their enterprise.
Department of Psychology, St. John's College, University of Manitoba, Winnipeg, Canada.
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AW
Pressey
D000375:Aging / Q000523:psychology*; D006801:Humans; D007088:Illusions; D009903:Optical Illusions; D010469:Perceptual Distortion; D011601:Psychophysics