Executive functioning (EF) deficits may be associated with depressed states, although limited research has examined components of EF as endophenotypes of depression. This study assessed whether affective updating predicted depressive symptoms in a sample pre-selected for varying levels of depression via the affective n-back. In this task, participants determine whether the valence of a stimulus matches the valence of the stimulus presented two stimuli prior. Results suggested affective updating ability did not significantly predict depressive symptoms approximately over time, although higher accuracy in updating negative information was associated with more depressive symptoms approximately twelve weeks later. Moreover, accuracy in updating positive and negative information did not differ between groups. However, a trend emerged for depressed participants to be more accurate in updating negative information in the face of interfering positive information, compared to updating positive information with interfering negative information. The latter results are considered within the reward devaluation framework.
| Identifer | oai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-1764 |
| Date | 08 December 2017 |
| Creators | Jordan, Duncan Gage |
| Publisher | Scholars Junction |
| Source Sets | Mississippi State University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
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