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Electroencephalographic frontal alpha asymmetry and biological markers of the immune system: A correlation study
University of Skövde, School of Bioscience.
2018 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The immune system has been suggested as crucial in brain and psychological functioning. More precisely, immune markers reflecting immune system activity are important for psychological and mental health, as evident by their role in the physiopathology of depression and in the impairment of executive functions. Frontal alpha asymmetry (FAA), an electroencephalographic marker of brain function, has also been linked to such psychopathology and is thought to reflect psychological processes underlying approach- versus withdrawal-related motivation and higher-order inhibitory control. Only a few studies have linked FAA to immune markers but notably found a negative association between IL-6, a pleiotropic pro-inflammatory cytokine, and FAA. The aim of the present work is thus to study the relationship between various immune markers (including pro-inflammatory cytokines and IL-6) and FAA. 35 healthy young male participants underwent a resting EEG recording and blood sampling from which immune markers were measured. The results did not suggest an association between IL-6 and FAA. No other immune markers were either suggested to be associated to FAA. The complexity of the immune system (e.g., effect of cytokines) is underlined and may explain the results. Despite such results, the implication of true negative correlations between FAA and circulating immune markers, as suggested in previous studies, is discussed in the light of the theoretical models of FAA.

Place, publisher, year, edition, pages
2018. , p. 83
Keywords [en]
frontal alpha asymmetry, cytokines, IL-6, approach, withdrawal, behavioural inhibition system, executive functions, self-regulation, depression
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:his:diva-15666OAI: oai:DiVA.org:his-15666DiVA, id: diva2:1220318
Subject / course
Cognitive Neuroscience
Educational program
Cognitive Neuroscience: Mind, Brain and Wellbeing - Master’s Programme
Supervisors
Examiners
Available from: 2018-06-19 Created: 2018-06-18 Last updated: 2018-06-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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