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Sattari, Sahar

University of British Columbia

This thesis consists of two studies exploring novel applications of electroencephalography (EEG). The first study investigated the potential of blink-related oscillations (BRO) as indicators of subtle neural changes due to subconcussive head impacts in female collegiate soccer athletes, using resting state EEG data. Results indicated decreased peak-to-peak amplitude response over the left parietal region and altered spectral power in the delta and alpha frequency range in these athletes compared to those involved in non-contact sports. Moreover, a strong linear relationship was found between increased delta and beta power over central parietal channels and the number of headers sustained during a season of play and practice. The second study, a pilot study, used hyperscanning EEG to investigate the neural synchrony between parents and toddlers during various interactions. Two methodologies were utilized for measurement of concurrent and causal relationship between neural oscillations including phase locking value (PLV) and Liang’s information flow. Notably, free play was found to enhance mother-child brain-to-brain synchrony, and a trend suggested a positive correlation between time progression and increased synchrony. Furthermore, dynamic changes in connectivity were observed across different frequency ranges during interactions, particularly in higher alpha and lower theta frequencies. Together, these studies underscore the potential of EEG as a tool for understanding the subtle and dynamic changes in brain activity linked to physical impact and social interaction.

Text

2023-08-24

Attribution-NonCommercial-NoDerivatives 4.0 International

http://hdl.handle.net/2429/85616

Biomedical Engineering

University of British Columbia

UBCV

http://creativecommons.org/licenses/by-nc-nd/4.0/