The association between a history of concussion and variability in behavioral and neuroelectric indices of cognition

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
Andrew C ParksM B Pontifex

Abstract

Associations between a history of concussion and variability in behavioral and neuroelectric indices of cognition were assessed in college-aged adults with a history of concussion and a healthy control group, in response to a stimulus discrimination task and a more attentionally demanding flanker task. Greater intra-individual variability was observed only for behavioral indices of reaction time in response to the flanker task for those with a history of concussion. An association was also observed between the number of concussions resulting in a loss of consciousness and greater variability of reaction time regardless of the type of task. Relative to neuroelectric measures, a concussive history was associated with smaller P3 amplitude only in response to the flanker task; with no differences between groups observed in response to the oddball task or for intra-individual variability measures. Thus, increased variability associated with a history of concussion appears to be behavior and process specific. The behavioral metrics and functions assessed are important considerations for identifying subtle, yet persistent influences of concussion on cognitive performance. Further, factors such as loss of consciousness associated with ...Continue Reading

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Citations

May 3, 2016·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Scott A Baldwin
Jun 17, 2019·Brain : a Journal of Neurology·Shaun D FicklingRyan C N D'Arcy
Jul 20, 2019·Biomedizinische Technik. Biomedical Engineering·Sebastián A Balart-SánchezRebeca Romo-Vázquez
Nov 28, 2020·Journal of the International Neuropsychological Society : JINS·Veronik SicardAndrew R Mayer
Jun 4, 2019·Neuropsychologia·Amanda L McGowanMatthew B Pontifex

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