It is difficult to imagine that different populations mediate the rewarding and the drive-like effects of stimulation when the refractory period profiles are so similar, each with a discontinuity between .6 and .7 msec.
It is difficult to imagine that different populations mediate the rewarding and the drive-like effects of stimulation when the refractory period profiles are so similar, each with a discontinuity between .6 and.7 msec.