Automating the assessment of visual dysfunction after traumatic brain injury

Singman, Eric L.

doi:10.7243/2052-6962-1-3

Cited by 24 publications

(14 citation statements)

References 40 publications

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“…This finding suggests that current return to sport/school/work assessments that do not test CMI, crucial for skilled activities, may not fully capture functional abilities postconcussion. Automated, objective testing for concussion is a hot topic; determination of the presence and degree of a concussion can be difficult and time consuming [ 13 ]. Our experimental task is one of the first that combines testing the elements of cognition and motor action simultaneously, and identifies CMI deficits where other testing procedures do not.…”

Section: Resultsmentioning

confidence: 99%

Prolonged cognitive–motor impairments in children and adolescents with a history of concussion

et al. 2016

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Aim:We investigated whether children and adolescents with concussion history show cognitive–motor integration (CMI) deficits.Method:Asymptomatic children and adolescents with concussion history (n = 50; mean 12.84 years) and no history (n = 49; mean: 11.63 years) slid a cursor to targets using their finger on a dual-touch-screen laptop; target location and motor action were not aligned in the CMI task.Results:Children and adolescents with concussion history showed prolonged CMI deficits, in that their performance did not match that of no history controls until nearly 2 years postevent.Conclusion:These CMI deficits may be due to disruptions in fronto-parietal networks, contributing to an increased vulnerability to further injury. Current return-to-play assessments that do not test CMI may not fully capture functional abilities postconcussion.

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Section: Resultsmentioning

confidence: 99%

Prolonged cognitive–motor impairments in children and adolescents with a history of concussion

et al. 2016

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“…Importantly, the current task is simple, quick and potentially side-line accessible. Such characteristics are vital since automated devices have recently become the new ‘gold standard’ in concussion assessment since they are simple, portable and reliable [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

The effect of concussion history on cognitive-motor integration in elite hockey players

et al. 2016

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Aim:To observe the effects of concussion history on cognitive-motor integration in elite-level athletes.Methods:The study included 102 National Hockey League draft prospects (n = 51 concussion history [CH]; n = 51 no history [NC]). Participants completed two computer-based visuomotor tasks, one involved ‘standard’ visuomotor mapping and one involved ‘nonstandard’ mapping in which vision and action were decoupled.Results:We observed a significant effect of group on reaction time (CH slower) and accuracy (CH worse), but a group by condition interaction only for reaction time (p < 0.05). There were no other deficits found. We discussed these findings in comparison to our previous work with non-elite athletes.Conclusion:Previously concussed elite-level athletes may have lingering neurological deficits that are not detected using standard clinical assessments.

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“…However, the pupil holds promise in this youth population as a potential window to mTBI [ 2 ], especially with the relatively recent advent of simple, clinically based, objective, rapid and quantitative dynamic pupillometry [ 11 , 13–14 , 17–20 ], having as automated aspect [ 55 ]. This has been demonstrated in a series of recent papers in adults with mTBI [ 11 , 13–14 , 17–20 ].…”

Section: Future Perspectivementioning

confidence: 99%

Understanding the effects of mild traumatic brain injury on the pupillary light reflex

2017

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The pupillary light reflex represents an optimal visual system to investigate and exploit in the mild traumatic brain injury (mTBI) population. Static and dynamic aspects of the pupillary light reflex were investigated objectively and quantitatively in the mTBI population. Pupillary responsivity was found to be significantly delayed, slowed and reduced, but symmetrical in nature, and with a smaller baseline diameter, as compared with normals. Several pupillary parameters also discriminated between those with versus without photosensitivity. Thus, dynamic pupillometry provides several objective biomarkers for the presence of mTBI and photosensitivity, gives insight into the global sites of neurological dysfunction and possible related mechanisms, and should result in improved patient care.

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Automating the assessment of visual dysfunction after traumatic brain injury

Cited by 24 publications

References 40 publications

Prolonged cognitive–motor impairments in children and adolescents with a history of concussion

Prolonged cognitive–motor impairments in children and adolescents with a history of concussion

The effect of concussion history on cognitive-motor integration in elite hockey players

Understanding the effects of mild traumatic brain injury on the pupillary light reflex

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