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A Combined EEG-fNIRS Study Investigating Mechanisms Underlying the Association between Aerobic Fitness and Inhibitory Control in Young Adults
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4598793
Author(s) Ludyga, Sebastian; Mücke, Manuel; Colledge, Flora; Pühse, Uwe; Gerber, Markus
Author(s) at UniBasel Ludyga, Sebastian
Hanke, Manuel
Colledge, Flora
Pühse, Uwe
Gerber, Markus
Year 2019
Title A Combined EEG-fNIRS Study Investigating Mechanisms Underlying the Association between Aerobic Fitness and Inhibitory Control in Young Adults
Journal Neuroscience
Volume 419
Pages / Article-Number 23-33
Keywords Cerebral oxygenation; Event-related potentials; Executive function; Physical activity; Stroop task
Abstract The current evidence suggests that aerobic fitness is associated with inhibitory control of executive functioning in children and older adults. However, the relative contributions of different neurophysiological mechanisms to this relation remain unclear and have not yet been examined in young adults. The present study aimed to compare inhibitory control between high and low-fit young adult men, and to investigate a possible mediation of fitness effects by conflict monitoring (N450 component of event-related potentials) and lateralized oxygenation difference (LOD) in the DLPFC. For the present cross-sectional study, participants with different physical activity levels were recruited and divided into low-fit and high-fit participants based on relative power on the PWC170. A Stroop Color-Word task was administered and combined EEG-fNIRS was simultaneously utilized to assess the N450 and LOD, because these parameters are linked with behavioral performance. The results of the statistical analysis showed that high-fitcompared to low-fit participants showed less Stroop interference and lower negativity of the N450, whereas no difference was found for LOD. Path-analyses further revealed that the relation between aerobic fitness levels and Stroop interference was indirect and mediated by N450. In contrast, LOD was inversely correlated with Stroop interference, but did not explain the relation of aerobic fitness with behavioral performance. The present findings indicate that greater inhibitory control in high- compared to low-fit young men can be explained by more effective conflict monitoring. Moreover, young adults with left-lateralizedDLPFC oxygenation also show higher inhibitory control, but this oxygenation pattern is not influenced by aerobic fitness.
Publisher Elsevier
ISSN/ISBN 0306-4522 ; 1873-7544
edoc-URL https://edoc.unibas.ch/77047/
Full Text on edoc No
Digital Object Identifier DOI 10.1016/j.neuroscience.2019.08.045
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/31487542
ISI-Number WOS:000498390200004
Document type (ISI) Article
 
   

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