Electroencephalography spectral coherence analysis during cycle ergometry in low‐ and high‐tolerant individuals

Psychophysiology, Journal Year: 2023, Volume and Issue: 61(1)

Published: Sept. 4, 2023

The main objective of this study was to further understanding the patterns spectral connectivity during exercise in low- and high-tolerant individuals. Thirty-nine healthy individuals (i.e., 17 22 participants) took part present study. A state-of-the-art portable electroencephalography system used measure brain's electrical activity an incremental test performed until point volitional exhaustion on a cycle ergometer. Spectral coherence explore frontal, central, parietal regions brain. Physiological, perceptual, affective responses were assessed throughout bout. spontaneous eyeblink rate also calculated prior commencement upon completion trial as indirect assessment dopaminergic system. findings indicate that reported lower levels perceived activation, especially preliminary stages test. Participants high-tolerance group greater remembered pleasure data revealed exhibited increased theta waves between electrode sites beta waves, primarily within cortex. Correlational analysis indicated possibility make use different neural networks process regulate their psychophysiological state exercise-related situations. This strategy could potentially represent conscious decision downregulate arousal facilitate control working muscles situations physical stress.

Language: Английский

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Exercise alters cortico-basal ganglia network metabolic connectivity: a mesoscopic level analysis informed by anatomic parcellation defined in the mouse brain connectome

Brain Structure and Function, Journal Year: 2023, Volume and Issue: 228(8), P. 1865 - 1884

Published: June 12, 2023

The basal ganglia are important modulators of the cognitive and motor benefits exercise. However, neural networks underlying these remain poorly understood. Our study systematically analyzed exercise-associated changes in metabolic connectivity cortico-basal ganglia-thalamic network during performance a new task, with regions-of-interest defined based on mesoscopic domains recently mouse brain structural connectome. Mice were trained motorized treadmill for six weeks or remained sedentary (control), thereafter undergoing [14C]-2-deoxyglucose mapping wheel walking. Regional cerebral glucose uptake (rCGU) was 3-dimensional brains reconstructed from autoradiographic sections using statistical parametric mapping. Metabolic assessed by calculating inter-regional correlation rCGU cross-sectionally across subjects within group. Compared to controls, exercised animals showed broad decreases areas, but increases limbic as well visual association cortices. In addition, (i) increased positive between cortex caudoputamen (CP), (ii) newly emerged negative substantia nigra pars reticulata globus pallidus externus, CP, (iii) reduced prefrontal (PFC). Increased circuit absence strongly suggests greater efficiency, which is also supported involvement PFC-mediated control task. delineates functional circuitry at subregional level provides framework understanding effects exercise functions network.

Language: Английский

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Vigorous-intensity acute exercise during encoding can reduce levels of episodic and false memory

Memory, Journal Year: 2022, Volume and Issue: 30(8), P. 1031 - 1045

Published: May 6, 2022

The potential benefits (veridical memory) and, importantly, costs (false of acute exercise on memory in conjunction with the timing and type have not been fully studied. In Experiment 1, we employed a three-condition (15-minute vigorous-intensity Before or During encoding, Control condition watching video), within-subjects, counterbalanced design. procedures included an immediate delayed (20-minute post encoding) free recall assessment. Veridical was determined by number studied words that were recalled, whereas false retrieving non-presented, critical item. For veridical memory, different than (p = .42), however, worse (p's < .001). No differences occurred for memory. 2 conducted several additional conditions (e.g., light-intensity exercise) during used recognition task instead task, extended long-term assessment out to 24-hours. demonstrated encoding reduced both related new items .05). These findings demonstrate intensity play important role influencing performance.

Language: Английский

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Exercise-induced neuroplasticity

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 706 - 729

Published: Aug. 9, 2024

Language: Английский

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Cognitive benefits of higher cardiorespiratory fitness in preadolescent children are associated with increased connectivity within the cingulo-opercular network

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Sept. 11, 2024

Higher cardiorespiratory fitness has been associated with improved cognitive control in preadolescent children, various studies highlighting related brain health benefits. This cross-sectional study aimed to provide novel insights into the fitness-cognition relationship by investigating task-related changes effective connectivity within two networks involved control: cingulo-opercular and fronto-parietal networks. Twenty-four higher-fit twenty-four lower-fit children completed a modified flanker task that modulated inhibitory demand while their EEG performance were concurrently recorded. Effective for correct trials theta band was estimated using directed transfer function. The results indicate higher levels demonstrated greater specific directions network (average effect size, d = 0.72). Brain-behavior correlations positive association between majority of these connections general accuracy, which also fit correlation coefficient, ρ 0.34). findings further support children. offer potential mechanisms underlying relationship. suggests increased may mediate benefits

Language: Английский

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