Journal
BRAIN SCIENCES
Volume 10, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/brainsci10070439
Keywords
Stroop interference; sport; executive function; psychological stress; fNIRS; brain oxygenation
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Funding
- Gottfried and Julia Bangerter-Rhyner Foundation [8472/HEG-DSV]
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Psychosocial stress has negative effects on cognition in adolescents. The aim of this study was to investigate whether physical exercise can buffer such effects on inhibitory control and associated cortical brain areas. Forty-two male high school students aged 16-20 years and with either low or high exercise levels performed a Stroop task under stress-free conditions and after the Trier Social Stress Test (TSST). Oxygenation of the dorsolateral prefrontal cortex (DLPFC) was measured with functional near-infrared spectroscopy. For inhibitory control, there was no significant primary effect of condition (F(1,40) = 1.09, p = 303., eta p(2) = 0.027) and no significant condition x group interaction (F(1,40) = 2.40, p = 0.129, eta p(2) = 0.057). For DLPFC oxygenation, a significant primary effect of condition was observed (F (1,38) = 6.10, p = 0.018, eta p(2) = 0.138). However, the condition x group interaction (F (1,38) = 0.05, p = 0.823, eta p(2) = 0.001) remained not significant. Adolescents' exercise level was not associated with inhibitory control before and after stress. An impact of stress on a neurocognitive level was observed.
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