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Brain systems underlying attentional control and emotional distraction during working memory encoding
School of Psychology, The University of Queensland, St Lucia, Australia.
Department of Psychology, Uppsala University, Uppsala, Sweden; Department of Psychology, Stockholm University, Stockholm, Sweden.
Department of Psychology, Stockholm University, Stockholm, Sweden; Umeå Center for Functional Brain Imaging (UFBI), Sweden; Aging Research Center (ARC) at Karolinska Institute and Stockholm University, Stockholm, Sweden.ORCID iD: 0000-0001-9143-3730
2014 (English)In: NeuroImage, ISSN 1053-8119, E-ISSN 1095-9572, Vol. 87, p. 276-286Article in journal (Refereed) Published
Abstract [en]

Goal-directed behavior requires that cognitive operations can be protected from emotional distraction induced by task-irrelevant emotional stimuli. The brain processes involved in attending to relevant information while filtering out irrelevant information are still largely unknown. To investigate the neural and behavioral underpinnings of attending to task-relevant emotional stimuli while ignoring irrelevant stimuli, we used fMRI to assess brain responses during attentional instructed encoding within an emotional working memory (WM) paradigm. We showed that instructed attention to emotion during WM encoding resulted in enhanced performance, by means of increased memory performance and reduced reaction time, compared to passive viewing. A similar performance benefit was also demonstrated for recognition memory performance, although for positive pictures only. Functional MRI data revealed a network of regions involved in directed attention to emotional information for both positive and negative pictures that included medial and lateral prefrontal cortices, fusiform gyrus, insula, the parahippocampal gyrus, and the amygdala. Moreover, we demonstrate that regions in the striatum, and regions associated with the default-mode network were differentially activated for emotional distraction compared to neutral distraction. Activation in a sub-set of these regions was related to individual differences in WM and recognition memory performance, thus likely contributing to performing the task at an optimal level. The present results provide initial insights into the behavioral and neural consequences of instructed attention and emotional distraction during WM encoding.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 87, p. 276-286
Keywords [en]
fMRI, Emotion, Amygdala, Working memory, Emotional distraction, Interference control, Selective attention, Top-down, Bottom-up, Fronto-parietal, Default-mode
National Category
Neurosciences Radiology, Nuclear Medicine and Medical Imaging
Identifiers
URN: urn:nbn:se:oru:diva-87604DOI: 10.1016/j.neuroimage.2013.10.048ISI: 000330554000027Scopus ID: 2-s2.0-84890899290OAI: oai:DiVA.org:oru-87604DiVA, id: diva2:1503849
Funder
Swedish Research Council, 2007-1895 2006-1290Available from: 2020-11-25 Created: 2020-11-25 Last updated: 2020-12-08Bibliographically approved

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