@article{ref1,
title="Electrophysiology reveals cognitive-linguistic alterations after concussion",
journal="Brain and language",
year="2022",
author="Ledwidge, Patrick S. and Jones, Christa M. and Huston, Chloe A. and Trenkamp, Madison and Bator, Bryan and Laeng, Jennie",
volume="233",
number="",
pages="e105166-e105166",
abstract="Language deficits and alterations to the N400 ERP are commonly reported in aphasia and moderate-to-severe traumatic brain injury (TBI), but have seldomly been investigated after mild TBI, such as concussion. In the present study, the N400 was recorded from young adults within 1-month after concussion and matched controls during a sentence processing task. The N400 recorded to semantically incongruent sentence-final words was significantly more negative and with a more anterior distribution in the concussion group than control group. Among the concussion group, a weaker N400 was associated with more concussion symptoms, slower response time, and poorer executive functioning. Multiple regression results showed that concussion occurrence and male gender were independently associated with a more negative N400-effect, whereas symptoms were associated with a weaker N400. These findings provide novel evidence that alterations to lexical-semantic networks may occur after concussion and vary based on individual differences in post-concussion symptoms and cognitive function.<p /> <p>Language: en</p>",
language="en",
issn="0093-934X",
doi="10.1016/j.bandl.2022.105166",
url="http://dx.doi.org/10.1016/j.bandl.2022.105166"
}