ABSTRACT
Simple reaction time is the length of time it takes a person to detect a supra-threshold stimulus, such as a light, a sound, or an odor. If the physical intensity is varied over trials, a functional relation is determined between reaction time and intensity. Whereas the details of such experiments are intricate, their broader conceptual basis is not (Luce, 1986). The question is how best to describe and explain the results found in diverse experimental conditions. The Sensory Aggregate Model makes a number of statements about the neural infrastructure of simple reaction time, as well as predictions about the quantitative features to be expected in such data.
