Aberrant positive affect dynamics in individuals with subthreshold depression: Evidence from laboratory and real-world assessments.

ABSTRACT:

Background/objective

Reduced positive affect (PA) is a core feature of major depressive disorder (MDD). However, the precursor of MDD, subthreshold depression (StD), has received less attention in this regard. Therefore, we examined PA dynamics in StD, integrating laboratory-based and ecological momentary assessment (EMA) approaches.

Method

Participants were college students recruited from Chinese universities (31 with StD, and 39 healthy controls (HC)). Positive mood was induced in the laboratory by an eight-minute comedy clip used to assess PA reactivity and maintenance. To extend findings to the real world and explore mechanisms of PA maintenance, 53 participants with StD and 64 HC reported their emotional states 14 times daily for one week via EMA. Multilevel models were

SUBMITTER: Song X 

PROVIDER: S-EPMC10761788 | biostudies-literature | 2024 Jan-Mar

REPOSITORIES: biostudies-literature