Does physical anhedonia play a role in depression? A 20-year longitudinal study

Stewart A Shankman*, Brady D. Nelson, Martin Harrow, Robert Faull

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Background: Anhedonia towards physical or sensory experiences (i.e., physical anhedonia) has most often been examined as a differentia of schizophrenia and not depression, despite the fact that general anhedonia is a core feature of many models of Major Depressive Disorder (MDD). Methods: Forty-nine participants with non-psychotic MDD were recruited from inpatient settings and followed-up six times over 20 years. The three aims of the study was to assess a) the stability of physical anhedonia over time, b) whether physical anhedonia relates to the course of depressive symptoms over time, and c) whether physical anhedonia relates to three domains of functioning - work, social functioning, or re-hospitalizations. Results: We found that over time physical anhedonia was relatively stable and related to depressive symptoms (both between and within person). Physical anhedonia was also related to certain aspects of functioning, though less robustly than depressive symptoms. Limitations: Because depressive symptoms, functioning, and physical anhedonia were measured concurrently at each follow-up, the direction of causality among these variables could not be assessed. Additionally, because our sample was recruited from inpatient settings, our findings may not generalize to individuals with less severe depression. Conclusions: A trait tendency to experience decreased pleasure to positive physical stimuli is a clinically meaningful variable for those with MDD and may be a behavioral endophenotype for a more severe form of depression.

Original languageEnglish (US)
Pages (from-to)170-176
Number of pages7
JournalJournal of Affective Disorders
Volume120
Issue number1-3
DOIs
StatePublished - Jan 2010

Keywords

  • Depression
  • Longitudinal course
  • Physical anhedonia

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health

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