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Evidence of conjoint activation of the anterior insular and cingulate cortices during effortful tasks
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.ORCID-id: 0000-0002-2167-2450
Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Linköpings universitet, Institutet för handikappvetenskap (IHV).
Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i centrala Östergötland, Neurologiska kliniken.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Hälsouniversitetet. Barrow Neurol Institute, AZ 85013 USA.
2015 (engelsk)Inngår i: Frontiers in Human Neuroscience, ISSN 1662-5161, E-ISSN 1662-5161, Vol. 8, nr 1071Artikkel i tidsskrift (Fagfellevurdert) 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).

sted, utgiver, år, opplag, sider
Frontiers , 2015. Vol. 8, nr 1071
Emneord [en]
functional magnetic resonance imaging; working memory; visual perception; forebrain asymmetry
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Identifikatorer
URN: urn:nbn:se:liu:diva-114419DOI: 10.3389/fnhum.2014.01071ISI: 000348354700001PubMedID: 25674057OAI: oai:DiVA.org:liu-114419DiVA, id: diva2:791978
Merknad

Funding Agencies|County Council of Ostergotland; Linkoping University

Tilgjengelig fra: 2015-03-02 Laget: 2015-02-20 Sist oppdatert: 2018-01-11

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Engström, MariaKarlsson, ThomasLandtblom, Anne-MarieCraig, Arthur

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