Fig. 1: Establishment of a behavioral procedure to quantify the appetitive and consummatory components of motivation for wheel running.
From: Medial nucleus accumbens dopamine receptors modulate motivation for wheel running in male mice

A Schematic representation of the operant wheel running task. The number of nose pokes B and the duration of wheel running C in sessions meeting the training criteria (n = 12). Data are expressed as means ± SEM.