title: The effect of motivation and positive affect on ego depletion: Replenishment versus release mechanism.
abstract: In this study, 2 experiments were conducted to investigate whether motivation and positive affect can alleviate ego depletion and to elucidate their possible mechanisms. In Experiment 1, a crossing-out-letter task was adapted to reach an ego depletion state for Chinese participants. Participants were then randomly assigned to the extrinsic motivation group, the positive affect group or the depletion control group. After the experimental treatment, a dumbbell task was used to measure participants' remaining self-regulatory resources. The results showed that participants in the motivation and positive affect groups performed better on the dumbbell task than participants in the depletion control group. Experiment 2 was similar to Experiment 1 except that participants were asked to perform an additional unexpected dumbbell task after a neutral video following the above procedure. The results of Experiment 1 were replicated; however, participants' performance on the additional dumbbell task differed. The positive affect group performed better than the depletion control group, indicating an increase in self-regulatory resources and thus supporting the replenishment effect of positive affect. No significant difference was found between the motivation group and the depletion control group.
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.
authors.forename: Ze
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.|Beijing Key Lab of Applied Experimental Psychology, Beijing Normal University, Beijing, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Zhang
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Li
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.
authors.forename: Houcan
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000328:Adult; D004532:Ego; D005260:Female; D006801:Humans; D008297:Male; D009042:Motivation / Q000502:physiology*; D000068356:Self-Control / Q000523:psychology*; D055815:Young Adult
keywords: Ego depletion; Mechanism; Motivation; Positive affect; Self-regulation