The aggregation of a number of similar neural impulses or stimuli. [Mediev. L. summatio, fr. summo, pp. -atus, to sum up, fr. L. summa, sum]
- s. of stimuli cumulative muscular or neural effects produced by the frequent repetition of stimuli.
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sum·ma·tion (.)sə-'mā-shən n cumulative action or effect esp the process by which a sequence of stimuli that are individually inadequate to produce a response are cumulatively able to induce a nerve impulse see SPATIAL SUMMATION, TEMPORAL SUMMATION
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sum·ma·tion (sə-maґshən) [L. summa total] the cumulative effects of a number of stimuli applied to a muscle, nerve, or reflex arc.Medical dictionary. 2011.