Studied the effects of rate and pattern of central stimulation on the strength of electrically elicited eating behavior in 10 male Sprague-Dawley rats. 2 experiments showed that threshold and latency as measures of this strength yield similar results. Doubling the stimulation rate increased response strength, presumably because of temporal summation of the transmitter at synapses in the neural pathway mediating the behavior. However, varying temporal patterning of pulses, with rate held constant, did not affect response strength except at interpulse intervals so short that the 2nd pulse of a pair fell within the presumed refractory period of the 1st; then response strength decreased. The lack of differential temporal summation at different patternings of pulses was attributed to a long survival lifetime of the transmitter mediating hunger. (16 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved).
|Number of pages
|Journal of Comparative and Physiological Psychology
|Published - Jun 1973
- pattern of central stimulation, strength of electrically elicited eating behavior, rats
- rate &
ASJC Scopus subject areas
- General Medicine