Relationships between aggression, sensation seeking, brain stiffness, and head impact exposure: Implications for head impact prevention in ice hockey

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Author(s)DiFabio, Melissa S.
Author(s)Smith, Daniel R.
Author(s)Breedlove, Katherine M.
Author(s)Buckley, Thomas A.
Author(s)Johnson, Curtis L.
Date Accessioned2022-06-22T13:29:24Z
Date Available2022-06-22T13:29:24Z
Publication Date2022-04-23
DescriptionThis article was originally published in Brain and Behavior. The version of record is available at: https://doi.org/10.1002/brb3.2627en_US
AbstractObjectives: The objectives of this study were to (1) examine the relationship between the number of head impacts sustained in a season of men's collegiate club ice hockey and behavioral traits of aggression and sensation seeking, and (2) explore the neural correlates of these behaviors using neuroimaging. Design: Retrospective cohort study. Methods: Participants (n = 18) completed baseline surveys to quantify self-reported aggression and sensation-seeking tendencies. Aggression related to playing style was quantified through penalty minutes accrued during a season. Participants wore head impact sensors throughout a season to quantify the number of head impacts sustained. Participants (n = 15) also completed baseline anatomical and magnetic elastography neuroimaging scans to measure brain volumetric and viscoelastic properties. Pearson correlation analyses were performed to examine relationships between (1) impacts, aggression, and sensation seeking, and (2) impacts, aggression, and sensation seeking and brain volume, stiffness, and damping ratio, as an exploratory analysis. Results: Number of head impacts sustained was significantly related to the number of penalty minutes accrued, normalized to number of games played (r = .62, p < .01). Our secondary, exploratory analysis revealed that number of impacts, sensation seeking, and aggression were related to stiffness or damping ratio of the thalamus, amygdala, hippocampus, and frontal cortex, but not volume. Conclusions: A more aggressive playing style was related to an increased number of head impacts sustained, which may provide evidence for future studies of head impact prevention. Further, magnetic resonance elastography may aid to monitor behavior or head impact exposure. Researchers should continue to examine this relationship and consider targeting behavioral modification programs of aggression to decrease head impact exposure in ice hockey.en_US
SponsorState of Delaware Federal Research and Development Grant Program and Office of Naval Research. Grant Numbers: N00014-18-1-2018, N00014-18-P-7004en_US
CitationDiFabio, M. S., Smith, D. R., Breedlove, K. M., Buckley, T. A., & Johnson, C. L. (2022). Relationships between aggression, sensation seeking, brain stiffness, and head impact exposure: Implications for head impact prevention in ice hockey. Brain and Behavior, 00, e2627. https://doi.org/10.1002/brb3.2627en_US
ISSN2157-9032
URLhttps://udspace.udel.edu/handle/19716/31009
Languageen_USen_US
PublisherBrain and Behavioren_US
Keywordsathletic trainingen_US
Keywordsinjury managementen_US
Keywordsneuroscienceen_US
Keywordssports medicineen_US
Keywordssports psychologyen_US
TitleRelationships between aggression, sensation seeking, brain stiffness, and head impact exposure: Implications for head impact prevention in ice hockeyen_US
TypeArticleen_US
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