The search operating characteristic as a tool for analyzing performance in dynamic visual search tasks*
Arthur M. Jacobs · Spatial Vision · 1991
A standard data plot for the analysis of eye movement behavior in visual search and related tasks, a Search Operating Characteristic (SOC), is proposed. The SOC plots mean fixation duration (in ms) vs. search span (in items/fixation) for different difficulty levels. It is well specified by a reciprocal power function and this function can be explained with the help of Piéron's law.