The purpose of the present work was to verify the effect of age on the exponent of power function in a Perceptive, Memory, and Inference experimental conditions. The age levels were: 17-34 years (I), 38-57 years (II) and 58-77 years (III). The observers estimated areas of Brazilian States using the psychophysic method of magnitude estimates. No significant differences were obtained among age levels for each experimental condition, except in the 24 hours-memory condition. The analysis among experimental conditions and ages showed a significant difference of Perceptual Conditions in comparison with the others. No significant difference between the Inference and Memory Conditions was found. The results indicated no loss of information due to age.
Visual perception; psychophysics; memory; age levels; Stevens law
