the interaction between the perceived duration of a stimulus and the spatial extent of the stimulus. When a small visual stimulus and a large visual stimulus are both flashed for the same length of time, the duration of the large stimulus is perceived as longer than that of the small stimulus.
KAPPA EFFECT: "Kappa Effect is the perceived duration of a stimulus and the spatial extent of the stimulus."
Cite this page: N., Sam M.S., "KAPPA EFFECT," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/kappa-effect/ (accessed March 20, 2023).