Basically sensory summation is the combining of sensory inputs at different levels of the nervous system. For concept clarity, have a look on temporal summation; spatial summation. You can see temporal summation also.

SENSORY SUMMATION: "Sensory summation occurs when multiple stimuli are added over time such as seeing, hearing and touching an object."
Cite this page: N., Pam M.S., "SENSORY SUMMATION," in, April 13, 2013, (accessed September 20, 2021).