TY  - JOUR
PY  - 2022//
TI  - Electrophysiology reveals cognitive-linguistic alterations after concussion
JO  - Brain and language
A1  - Ledwidge, Patrick S.
A1  - Jones, Christa M.
A1  - Huston, Chloe A.
A1  - Trenkamp, Madison
A1  - Bator, Bryan
A1  - Laeng, Jennie
SP  - e105166
EP  - e105166
VL  - 233
IS  - 
N2  - 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>
LA  - en
SN  - 0093-934X
UR  - http://dx.doi.org/10.1016/j.bandl.2022.105166
ID  - ref1
ER  -