The Clinical Utility of P300 Evoked Responses in Post-Sport-Related Concussion Evaluation

By: Stephanie A. Waryasz, Au.D., CCC-A, F-AAA   Sport-related concussion is a type of injury that tends to produce subtle anatomical abnormalities on the microscopic level within the brain (Gaetz & Weinberg, 2000; Gaetz, Goodman, & Weinberg, 2000; Barth, Freeman, Broshek, & Verney, 2001).  These types of injuries may be asymptomatic and remain unidentified through…

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Book review: Auditory Event-Related Potentials to Words: Implications for Audiologists by James Jerger, Jeffery Martin and Katherine Fitzharris

Auditory Event-Related Potentials to Words: Implications for Audiologists by James Jerger, Jeffery Martin and Katherine Fitzharris of the School of Behavioral Sciences, University of Texas at Dallas represents a rather fresh approach to the interpretation of late auditory evoked potentials elicited in response to word stimuli. The authors note that they hope to motivate audiologists…

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The N400 Event Related Potential: An Overview

by Dara Kelly, University of Connecticut. March 14, 2014. The event related potential (ERP) N400 component was originally characterized as a reaction to an unexpected or inappropriate, but syntactically correct, word at the end of a sentence. Today, the N400 is determined by its characteristic morphology and change in amplitude relative to deviant or unexpected stimuli.

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