TY - JOUR
T1 - Perceived stress, anhedonia and illusion of control
T2 - Evidence for two mediational models
AU - Bogdan, Ryan
AU - Pringle, Patricia L.
AU - Goetz, Elena L.
AU - Pizzagalli, Diego A.
N1 - Funding Information:
Acknowledgments We are grateful for Dr. Suzanne C. Thompson’s assistance with IOC task design. This study was partially supported by NIMH (R01MH68376, R21MH078979), Merck Awards for Genome-Related Research (Harvard University), and Talley Fund (Harvard University) grants to D. A. Pizzagalli. Additionally, the study was supported by a Sackler Scholar in Psychobiology (Harvard University) scholarship awarded to R. Bogdan and Harvard College Research Program grants to P. Pringle. Dr. Pizzagalli has received consulting fees from ANT North America Inc. (Advanced Neuro Technology) and AstraZeneca, and honoraria from AstraZeneca for studies unrelated to this project.
PY - 2012/12
Y1 - 2012/12
N2 - 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.
AB - 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.
KW - Anhedonia
KW - Depression
KW - Illusion of control
KW - Reward
KW - Stress
UR - http://www.scopus.com/inward/record.url?scp=84874105991&partnerID=8YFLogxK
U2 - 10.1007/s10608-011-9413-8
DO - 10.1007/s10608-011-9413-8
M3 - Article
AN - SCOPUS:84874105991
SN - 0147-5916
VL - 36
SP - 827
EP - 832
JO - Cognitive Therapy and Research
JF - Cognitive Therapy and Research
IS - 6
ER -