characteristic of binocular cells in the visual cortex which will be more active if stimulus is perceived through both eyes then if it was perceived only through one. It will be similar with the hearing.
Cite this page: N., Sam M.S., "SUMMATION EFFECT," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/summation-effect/ (accessed August 15, 2022).