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Perceived Stress, Anhedonia and Illusion of Control: Evidence for Two Mediational Models

Abstract  

Illusion of control (IOC) refers to the perception that one has control over an outcome that is, in actuality, uncontrollable;
low IOC has been linked to depression. Prior studies in depression have mostly assessed IOC using paradigms involving positive
outcomes, suggesting that IOC might be influenced by anhedonia. Recent evidence indicates that anhedonia, in turn, is linked
to stress. To clarify such links, we examined putative relationships among perceived stress, anhedonia, and IOC (as assessed
by a non-contingency task) in 63 participants. Perceived stress and anhedonia, but not general depressive symptoms, were associated
with reduced IOC. Moreover, anhedonia fully mediated the relationship between stress perception and IOC, and perceived stress
partially mediated the relationship between IOC and anhedonia. Findings suggest that (1) IOC is integrally related to hedonic
capacity, (2) reward processing deficits may promote reduced IOC, and/or (3) a low IOC may promote depression via anhedonia-related
mechanisms.

  • Content Type Journal Article
  • Category Brief Report
  • Pages 1-6
  • DOI 10.1007/s10608-011-9413-8
  • Authors
    • Ryan Bogdan, Department of Psychology, Harvard University, 33 Kirkland St., Cambridge, MA 02138, USA
    • Patricia L. Pringle, Department of Psychology, Harvard University, 33 Kirkland St., Cambridge, MA 02138, USA
    • Elena L. Goetz, Department of Psychology, Harvard University, 33 Kirkland St., Cambridge, MA 02138, USA
    • Diego A. Pizzagalli, Department of Psychology, Harvard University, 33 Kirkland St., Cambridge, MA 02138, USA