Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injury
Concussions are associated with an array of physical, emotional, cognitive, and sleep symptoms at multiple timescales. Cognitive recovery occurs relatively quickly – five-to-seven days on average. Yet, recent evidence suggests that some neurophysiological changes can be identified one year after a c...
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2021-05-01
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Online Access: | https://doi.org/10.1177/20597002211006585 |
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doaj-8d0b28744c5a4f54a77fc940370970642021-05-10T03:03:19ZengSAGE PublishingJournal of Concussion2059-70022021-05-01510.1177/20597002211006585Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injuryDaniel D LeedsAnnie NguyenChristopher D’LauroJonathan C JacksonBrian R JohnsonConcussions are associated with an array of physical, emotional, cognitive, and sleep symptoms at multiple timescales. Cognitive recovery occurs relatively quickly – five-to-seven days on average. Yet, recent evidence suggests that some neurophysiological changes can be identified one year after a concussion. To that end, we examine more nuanced patterns in cognitive tests to determine whether cognitive abilities could identify a concussion within one-year post injury. A radial-basis (non-linear boundary) support vector machine classifier was trained to use cognitive performance measures to distinguish participants with no prior concussion from participants with prior concussion in the past year. After incorporating only 10 cognitive measures, or all 5 composite measures from the neurocognitive assessment (Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT)), over 90% accuracy was achieved in identifying both participants without prior concussions and participants with concussions in the past year, particularly when relying on non-linear patterns. Notably, classification accuracy stayed relatively constant between participants who had a concussion early or late in the one-year window. Thus, with substantial accuracy, a prior concussion can be identified using a non-linear combination of cognitive measures. Cognitive effects from concussion linger one-year post-injury, indicating the importance of continuing to follow concussion patients for many months after recovery and to take special note of constellations of cognitive abilities.https://doi.org/10.1177/20597002211006585 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Daniel D Leeds Annie Nguyen Christopher D’Lauro Jonathan C Jackson Brian R Johnson |
spellingShingle |
Daniel D Leeds Annie Nguyen Christopher D’Lauro Jonathan C Jackson Brian R Johnson Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injury Journal of Concussion |
author_facet |
Daniel D Leeds Annie Nguyen Christopher D’Lauro Jonathan C Jackson Brian R Johnson |
author_sort |
Daniel D Leeds |
title |
Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injury |
title_short |
Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injury |
title_full |
Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injury |
title_fullStr |
Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injury |
title_full_unstemmed |
Prolonged concussion effects: Constellations of cognitive deficits detected up to year after injury |
title_sort |
prolonged concussion effects: constellations of cognitive deficits detected up to year after injury |
publisher |
SAGE Publishing |
series |
Journal of Concussion |
issn |
2059-7002 |
publishDate |
2021-05-01 |
description |
Concussions are associated with an array of physical, emotional, cognitive, and sleep symptoms at multiple timescales. Cognitive recovery occurs relatively quickly – five-to-seven days on average. Yet, recent evidence suggests that some neurophysiological changes can be identified one year after a concussion. To that end, we examine more nuanced patterns in cognitive tests to determine whether cognitive abilities could identify a concussion within one-year post injury. A radial-basis (non-linear boundary) support vector machine classifier was trained to use cognitive performance measures to distinguish participants with no prior concussion from participants with prior concussion in the past year. After incorporating only 10 cognitive measures, or all 5 composite measures from the neurocognitive assessment (Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT)), over 90% accuracy was achieved in identifying both participants without prior concussions and participants with concussions in the past year, particularly when relying on non-linear patterns. Notably, classification accuracy stayed relatively constant between participants who had a concussion early or late in the one-year window. Thus, with substantial accuracy, a prior concussion can be identified using a non-linear combination of cognitive measures. Cognitive effects from concussion linger one-year post-injury, indicating the importance of continuing to follow concussion patients for many months after recovery and to take special note of constellations of cognitive abilities. |
url |
https://doi.org/10.1177/20597002211006585 |
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