Delayed reconfiguration of a non-emotional task set through reactivation of an emotional task set in task switching: an ageing study

Berger, Natalie and Richards, Anne and Davelaar, Eddy J. (2019) Delayed reconfiguration of a non-emotional task set through reactivation of an emotional task set in task switching: an ageing study. Cognition and Emotion 33 (7), pp. 1370-1386. ISSN 1464-0600.

Abstract

In our everyday life, we frequently switch between different tasks, a faculty that changes with age. However, it is still not understood how emotion impacts on age-related changes in task switching. Using faces with emotional and neutral expressions, Experiment 1 investigated younger (n = 29; 18–38 years old) and older adults’ (n = 32; 61–80 years old) ability to switch between an emotional and a non-emotional task (i.e. responding to the face's expression vs. age). In Experiment 2, younger and older adults also viewed emotional and neutral faces, but switched between two non-emotional tasks (i.e. responding to the face's age vs. gender). Data from Experiment 1 demonstrated that switching from an emotional to a non-emotional task was slower when the expression of the new face was emotional rather than neutral. This impairment was observed in both age groups. In contrast, Experiment 2 revealed that neither younger nor older adults were affected by block-wise irrelevant emotion when switching between two non-emotional tasks. Overall, the findings suggest that task-irrelevant emotion can impair task switching through reactivation of the competing emotional task set. They also suggest that this effect and the ability to shield task-switching performance from block-wise irrelevant emotion are preserved in ageing.

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