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Evidence of conjoint activation of the anterior insular and cingulate cortices during effortful tasks
Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0002-2167-2450
Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, The Swedish Institute for Disability Research.
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Local Health Care Services in Central Östergötland, Department of Neurology.
Linköping University, Department of Clinical and Experimental Medicine, Division of Cell Biology. Linköping University, Faculty of Health Sciences. Barrow Neurol Institute, AZ 85013 USA.
2015 (English)In: Frontiers in Human Neuroscience, ISSN 1662-5161, E-ISSN 1662-5161, Vol. 8, no 1071Article in journal (Refereed) Published
Abstract [en]

The ability to perform effortful tasks is a topic that has received considerable interest in the research of higher functions of the human brain. Neuroimaging studies show that the anterior insular and the anterior cingulate cortices are involved in a multitude of cognitive tasks that require mental effort. In this study, we investigated brain responses to effort using cognitive tasks with task-difficulty modulations and functional magnetic resonance imaging (fMRI). We hypothesized that effortful performance involves modulation of activation in the anterior insular and the anterior cingulate cortices, and that the modulation correlates with individual performance levels. Healthy participants performed tasks probing verbal working memory capacity using the reading span task, and visual perception speed using the inspection time task. In the fMRI analysis, we focused on identifying effort-related brain activation. The results showed that working memory and inspection time performances were directly related. The bilateral anterior insular and anterior cingulate cortices showed significantly increased activation during each task with common portions that were active across both tasks. We observed increased brain activation in the right anterior insula and the anterior cingulate cortex in participants with low working memory performance. In line with the reported results, we suggest that activation in the anterior insular and cingulate cortices is consistent with the neural efficiency hypothesis (Neubauer).

Place, publisher, year, edition, pages
Frontiers , 2015. Vol. 8, no 1071
Keyword [en]
functional magnetic resonance imaging; working memory; visual perception; forebrain asymmetry
National Category
Clinical Medicine Basic Medicine
Identifiers
URN: urn:nbn:se:liu:diva-114419DOI: 10.3389/fnhum.2014.01071ISI: 000348354700001PubMedID: 25674057OAI: oai:DiVA.org:liu-114419DiVA: diva2:791978
Note

Funding Agencies|County Council of Ostergotland; Linkoping University

Available from: 2015-03-02 Created: 2015-02-20 Last updated: 2017-12-04

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Engström, MariaKarlsson, ThomasLandtblom, Anne-MarieCraig, Arthur

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Division of Radiological SciencesFaculty of Health SciencesCenter for Medical Image Science and Visualization (CMIV)Disability ResearchFaculty of Arts and SciencesThe Swedish Institute for Disability ResearchDivision of Neuro and Inflammation ScienceFaculty of Medicine and Health SciencesDepartment of NeurologyDivision of Cell Biology
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