Figure 5.

Satiation decreases motivation on the rCET. (a) Satiation (AS and CS) reduced choice of high-effort/HR trials on the rCET, as compared with FR, for both workers and slackers (condition: p<0.001; FR vs CS: p<0.001; AS vs CS: p=0.004). (b) This decrease in choice of HR trials was accompanied by general impairments in accuracy on the rCET (condition: p<0.001). (c) Motor impulsivity was not affected by satiety. (d) In the control task, where cognitive effort costs were eliminated, all yoked animals also reduced choice of the lower probability HR trials in response to satiation (condition: p<0.001). (e and f) Satiety had no effect on accuracy or premature responding on the control task. Data are shown as the mean percent choice for each option (±SEM).