Title

Executive control in depressive rumination : backward inhibition and non-inhibitory switching performance in a modified mixed antisaccade task

Document Type

Journal article

Source Publication

Frontiers in Psychology

Publication Date

2-14-2017

Volume

8

Issue

Feb

Article Number

136

Publisher

Frontiers Research Foundation

Keywords

Attention Switching, Depressive Rumination, Executive Dysfunction, Eye-Tracking, Mixed Antisaccade Task

Abstract

Background and Objectives: The present study examines backward inhibition (BI) and non-inhibitory switching performance among depressed and healthy participants in a modified mixed antisaccade task. Specifically, sad and neutral faces were incorporated in the design to examine executive control difficulties associated with brooding trait.

Methods: Thirty-nine participants took part in the study, including 19 depressed patients and 20 healthy control subjects. Participants completed a diagnostic interview and self-report questionnaires, including the Beck Depression Inventory and Ruminative Response Scale-Brooding Subscale. They were then instructed to complete prosaccade and antisaccade trials in the pure and mixed blocks whereby eye gazes were tracked to assess inhibition and switching efficiency.

Results: For the switching effects, a significant group × brooding × task type interaction was found as hypothesized when multilevel modeling analysis was employed. Switching deficits associated with brooding was found to be greatest when sad faces were presented to depressed group. No significant results in BI or error rates were observed.

Conclusion: The patterns observed suggest that as opposed to BI, set shifting difficulty associated with brooding trait may be modulated by negative mood and cognition. In future research, emotional faces other than sad faces may be used to further explore if the observations could be generalized to other affective conditions.

DOI

10.3389/fpsyg.2017.00136

E-ISSN

16641078

Funding Information

This research was funded through University of Hong Kong seed funding for basic research (project no: 201205159004).{201205159004}

Publisher Statement

Copyright © 2017 Lo and Liu.

Access to external full text or publisher's version may require subscription.

Full-text Version

Publisher’s Version

Language

English

Recommended Citation

Lo, B. C. Y., & Liu, J. C. C. (2017). Executive control in depressive rumination: Backward inhibition and non-inhibitory switching performance in a modified mixed antisaccade task. Frontiers in Psychology, 8(Feb), art. 136. doi: 10.3389/fpsyg.2017.00136

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