Skip to main content
Individual Differences and Self-Regulatory Fatigue: Optimism, Conscientiousness, and Self-Consciousness
Personality and Individual Differences (2011)
  • Lise Solberg Nes, Mayo Clinic
  • Charles R. Carlson, University of Kentucky
  • Leslie Crofford, University of Kentucky
  • Reny deLeeuw, University of Kentucky
  • Suzanne C. Segerstrom, University of Kentucky

Ability to self-regulate varies and self-regulatory strength is a limited source that can be depleted or fatigued. Research on the impact of individual differences on self-regulatory capacity is still scarce, and this study aimed to examine whether personality factors such as dispositional optimism, conscientiousness, and self-consciousness can impact or buffer self-regulatory fatigue. Participants were patients diagnosed with chronic multi-symptom illnesses (N= 50), or pain free matched controls (N= 50), randomly assigned to either a high or low self-regulation task, followed by a persistence task. Higher optimism predicted longer persistence (p= .04), and there was a trend towards the same effect for conscientiousness (p= .08). The optimism by self-regulation interaction was significant (p= .01), but rather than persisting despite self-regulatory effort, optimists persisted longer only when not experiencing self-regulatory fatigue. The effects of optimism were stronger for controls than patients. There was also a trend towards a similar conscientiousness by self-regulation interaction (p= .06). These results suggest that the well-established positive impact of optimism and conscientiousness on engagement and persistence may be diminished or reversed in the presence of self-regulatory effort or fatigue, adding an important new chapter to the self-regulation, personality, and pain literature.

  • Conscientiousness,
  • Dispositional optimism,
  • Self-regulation,
  • Self-regulatory fatigue,
  • Selfconsciousness
Publication Date
April, 2011
Citation Information
Lise Solberg Nes, Charles R. Carlson, Leslie Crofford, Reny deLeeuw, et al.. "Individual Differences and Self-Regulatory Fatigue: Optimism, Conscientiousness, and Self-Consciousness" Personality and Individual Differences Vol. 50 Iss. 4 (2011)
Available at: