When1: 1886
When2: 1902
Who: James McKeen Cattell [Cattell, James McKeen]
What: psychologist
Where: USA
works\ Psychometric Investigation [1886]; Time of Perception as a Measure of Differences in Intensity [1902]
Detail: He lived 1860 to 1944, experimentally tried hashish, and measured reaction times and small perception differences [1902].
Social Sciences>Psychology>History>Perception
6-Psychology-History-Perception
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Date Modified: 2022.0224