Physiological underarousal as a mechanism of aggressive behavior in university athletes with a history of concussion.

As Figure 1 illustrates, the standardized regression coefficient between injury severity and EDA amplitude was marginally significant ( p = 0.054) and the standardized regression coefficient between physiological arousal and physical aggression was statistically significant ( p = 0.008), as was the indirect effect of injury severity on physical aggression ( β = 0.290, p = 0.018).

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