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Cognition, Neuroelectric Brain Function, and Salivary Biomarkers Following Exercise.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Cognition, Neuroelectric Brain Function, and Salivary Biomarkers Following Exercise./
Author:	McDonald, Katherine.
Description:	1 online resource (118 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-10, Section: B.
Contained By:	Dissertations Abstracts International84-10B.
Subject:	Neurosciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30419562click for full text (PQDT)
ISBN:	9798379415259

Cognition, Neuroelectric Brain Function, and Salivary Biomarkers Following Exercise.
McDonald, Katherine.

Cognition, Neuroelectric Brain Function, and Salivary Biomarkers Following Exercise. - 1 online resource (118 pages)

Source: Dissertations Abstracts International, Volume: 84-10, Section: B.

Thesis (Ph.D.)--Northeastern University, 2023.

Includes bibliographical references

Previous research has shown that an acute bout of exercise is beneficial for cognitive and brain function, but a neurobiological mechanism that relates physiological change to cognitive health remains highly debated. Therefore, this dissertation aimed to investigate a candidate biological mechanism, the sympathetic nervous system (SNS), on exercise-induced changes in brain and cognition. In 60 young adults, behavioral outcomes associated with a modified flanker task that modulates inhibitory control demands, spectral and temporal neuroelectric outcomes, and salivary samples were collected prior to and following a randomized 20-minute intervention (e.g., moderate-to-vigorous treadmill walking, a Trier social stress test, or seated rest). I hypothesized that changes in salivary alpha amylase (sAA), a biomarker that captures the fast-acting phasic changes in the SNS, would mediate the relationship between intervention (exercise vs. rest) and flanker accuracy, response time, P3-ERP amplitude and latency, and alpha and theta frequency power. Although cognitive and brain outcomes were not mediated by the salivary biomarker associated with SNS arousal or affected by the exercise intervention, some insight was gained into how exercise affected the candidate mechanism during a global pandemic. Further research is required to fully understand the potential mechanistic role of the SNS in relation to an acute bout of exercise to promote public health outcomes and improve brain health across the lifespan.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379415259Subjects--Topical Terms:

588700
Neurosciences.
Subjects--Index Terms:

Brain functionIndex Terms--Genre/Form:

542853
Electronic books.

Cognition, Neuroelectric Brain Function, and Salivary Biomarkers Following Exercise.
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500 $a Source: Dissertations Abstracts International, Volume: 84-10, Section: B.
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504 $a Includes bibliographical references
520 $a Previous research has shown that an acute bout of exercise is beneficial for cognitive and brain function, but a neurobiological mechanism that relates physiological change to cognitive health remains highly debated. Therefore, this dissertation aimed to investigate a candidate biological mechanism, the sympathetic nervous system (SNS), on exercise-induced changes in brain and cognition. In 60 young adults, behavioral outcomes associated with a modified flanker task that modulates inhibitory control demands, spectral and temporal neuroelectric outcomes, and salivary samples were collected prior to and following a randomized 20-minute intervention (e.g., moderate-to-vigorous treadmill walking, a Trier social stress test, or seated rest). I hypothesized that changes in salivary alpha amylase (sAA), a biomarker that captures the fast-acting phasic changes in the SNS, would mediate the relationship between intervention (exercise vs. rest) and flanker accuracy, response time, P3-ERP amplitude and latency, and alpha and theta frequency power. Although cognitive and brain outcomes were not mediated by the salivary biomarker associated with SNS arousal or affected by the exercise intervention, some insight was gained into how exercise affected the candidate mechanism during a global pandemic. Further research is required to fully understand the potential mechanistic role of the SNS in relation to an acute bout of exercise to promote public health outcomes and improve brain health across the lifespan.
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