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Evidence of conjoin...
Evidence of conjoint activation of the anterior insular and cingulate cortices during effortful tasks
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- Engström, Maria (författare)
- Linköpings universitet,Avdelningen för radiologiska vetenskaper,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Karlsson, Thomas (författare)
- Linköpings universitet,Handikappvetenskap,Filosofiska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Institutet för handikappvetenskap (IHV)
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- Landtblom, Anne-Marie (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Neurologiska kliniken i Linköping,Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden
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- Craig, Arthur (författare)
- Linköpings universitet,Avdelningen för cellbiologi,Hälsouniversitetet,Barrow Neurol Institute, AZ 85013 USA
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(creator_code:org_t)
- 2015-01-26
- 2015
- Engelska.
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Ingår i: Frontiers in Human Neuroscience. - : Frontiers. - 1662-5161. ; 8:1071
- Relaterad länk:
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https://www.frontier...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- 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).
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Nyckelord
- functional magnetic resonance imaging; working memory; visual perception; forebrain asymmetry
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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