- See under summation(def 5).
Origin of spatial summation
First recorded in 1965–70
- the act or process of summing.
- the result of this; an aggregate or total.
- a review or recapitulation of previously stated facts or statements, often with a final conclusion or conclusions drawn from them.
- Law. the final arguments of opposing attorneys before a case goes to the jury.
- Physiology. the arousal of impulses by a rapid succession of stimuli, carried either by separate sensory neurons (spatial summation) or by the same sensory neuron (temporal summation).
Origin of summation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the act or process of determining a sum; addition
- the result of such an act or process
- a summary
- US law the concluding statements made by opposing counsel in a case before a court
C18: from Medieval Latin summātiō, from summāre to total, from Latin summa sum 1
Word Origin and History for spatial summation
1760, from Modern Latin summationem (nominative summatio) "an adding up," from Late Latin summatus, past participle of summare "to sum up," from Latin summa (see sum).
Online Etymology Dictionary, © 2010 Douglas Harper
- The process by which multiple or repeated stimuli can produce a response in a nerve, muscle, or other part that one stimulus alone cannot produce.