Cross-Validation of Measures Used for Computer-Based Assessment of Concussion

Schatz, Philip; Putz, Brendan O.

doi:10.1207/s15324826an1303_2

Cited by 62 publications

(42 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such assessments are also taking advantage of computerized and virtual assessment techniques as well as the ability to automate the assessment (Cernich et al, 2007;Iverson et al, 2005;Schatz & Putz, 2006;Slobounov et al, 2006). Likewise, various cognitive neuroscience measures either by themselves or combined with functional neuroimaging methods hold great promise for more accurate assessment of the effects of TBI on behavior and cognition (Bergemalm & Lyxell, 2005;Casson et al, 2006;Chan, 2001;Chen et al, 2007;Cicerone et al, 2006;Dockree et al, 2006b;Jantzen et al, 2004;Mendez et al, 2005;O'Keeffe et al, 2007a;O'Keeffe et al, 2007b;Scheibel et al, 2007;Suh et al, 2006).…”

Section: Ecological Validity Of the Clinical Neuropsychological Approachmentioning

confidence: 99%

Neuropsychology and clinical neuroscience of persistent post-concussive syndrome

Bigler

2007

J Int Neuropsychol Soc

363

248

View full text Add to dashboard Cite

On the mild end of the acquired brain injury spectrum, the terms concussion and mild traumatic brain injury (mTBI) have been used interchangeably, where persistent post-concussive syndrome (PPCS) has been a label given when symptoms persist for more than three months post-concussion. Whereas a brief history of concussion research is overviewed, the focus of this review is on the current status of PPCS as a clinical entity from the perspective of recent advances in the biomechanical modeling of concussion in human and animal studies, particularly directed at a better understanding of the neuropathology associated with concussion. These studies implicate common regions of injury, including the upper brainstem, base of the frontal lobe, hypothalamic-pituitary axis, medial temporal lobe, fornix, and corpus callosum. Limitations of current neuropsychological techniques for the clinical assessment of memory and executive function are explored and recommendations for improved research designs offered, that may enhance the study of long-term neuropsychological sequelae of concussion. (JINS, 2008, 14, 1-22.)

show abstract

Section: Ecological Validity Of the Clinical Neuropsychological Approachmentioning

confidence: 99%

Neuropsychology and clinical neuroscience of persistent post-concussive syndrome

Bigler

2007

J Int Neuropsychol Soc

363

248

View full text Add to dashboard Cite

show abstract

“…When compared with traditional neuropsychological measures, processing speed and reaction time measures have moderate correlations with similar traditional neuropsychological measures. 16,17 Schatz et al 18 examined a score that consisted of the visual memory, processing speed, and impulse control composite scores and found the sensitivity of ImPACT was 81.9% and the specificity was 89.4% for identifying individuals with concussions. The ImPACT clinical interpretation manual 12 describes 2 types of invalid protocols: invalid profiles and ''sandbagging'' profiles.…”

Section: Methodsmentioning

confidence: 99%

Invalid Performance and the ImPACT in National Collegiate Athletic Association Division I Football Players

Szabo

Alosco

Fedor

et al. 2013

Journal of Athletic Training

View full text Add to dashboard Cite

Intervention(s): An informational intervention regarding the importance of concussion testing to promote safety was administered before testing for the most recent season.Main Outcome Measure(s): We examined preseason ImPACT testing data across a 3-year period (total assessments ¼ 269). Based on invalid and sandbagging indices denoted by the ImPACT manual, protocols were examined to indicate how many invalid indices each athlete had.Results: A total of 27.9% (n ¼ 75) of assessments were suggestive of invalid scores, with 4.1% (n ¼ 11) suggesting invalid responding only, 17.5% (n ¼ 47) indicating ''sandbagging'' only, and 6.3% (n ¼ 17) showing both invalid and sandbagging responding. The informational intervention did not reduce the prevalence of invalid responding.Conclusions: These findings highlight the need for further information about the ImPACT validity indices and whether they truly reflect poor effort. Future work is needed to identify practices to reliably target and reduce invalid responding.Key Words: concussions, neuropsychological tests, malingering Key PointsMore than 25% (n ¼ 75) of the participants' baseline cognitive testing suggested suboptimal effort. Providing information about concussion risks and the importance of cognitive testing did not reduce the prevalence of poor effort; however, instructing athletes to repeat testing did reduce it. More research is needed to determine effective and efficient strategies to reduce the prevalence of invalid performance on Immediate Post-Concussion Assessment and Cognitive Testing.

show abstract

“…It has been used successfully in theater (e.g., Balad Air Force Base Hospital) and has been validated against the Repeatable Battery for the Assessment of Neuropsychological Status, which is also actively used in military treatment settings. The CSI, which also compared well with ImPACT (Immediate Postconcussion Assessment and Cognitive Test) and ANAM (Automated Neuropsychological Assessment Metrics) in sports assessments [17], is sensitive to the subtle neurocognitive deficits associated with concussion and was used in this study to complement the eye tracking and balance assessment of neurophysiological function in the concussed and nonconcussed subject populations.…”

Section: Stability Indexmentioning

confidence: 99%

Utility of a multimodal neurophysiologic assessment tool in distinguishing between individuals with and without a history of mild traumatic brain injury

et al. 2016

View full text Add to dashboard Cite

Abstract-This was a preliminary validation study of a multimodal concussion assessment battery incorporating eye-tracking, balance, and neurocognitive tests using a new hardware platform, the Computerized Brain Injury Assessment System. Using receiver-operating characteristics analyses, (1) we identified a subset of the most discriminating neurophysiological assessment tests, involving smooth pursuit eye movement tracking errors, corrective saccade counts, a balance score ratio sensitive to vestibular balance performance, and two neurocognitive tests of response speed and memory/incidental learning; (2) we demonstrated the enhancement in discriminatory capability of detecting concussion-related deficits through the combination of the identified subset of assessments; and (3) we demonstrated the effectiveness of a robust and readily implemented global scoring approach for both eye track and balance assessment tests. These results are significant in introducing a comprehensive solution for concussion assessment that incorporates an economical, compact, and mobile hardware system as well as an assessment battery that is multimodal and time efficient and whose efficacy has been demonstrated on a preliminary basis. This represents a significant step toward the goal of a system capable of making a dependable return-to-play/ duty determination based on concussion likelihood.

show abstract

Cross-Validation of Measures Used for Computer-Based Assessment of Concussion

Cited by 62 publications

References 28 publications

Neuropsychology and clinical neuroscience of persistent post-concussive syndrome

Neuropsychology and clinical neuroscience of persistent post-concussive syndrome

Invalid Performance and the ImPACT in National Collegiate Athletic Association Division I Football Players

Utility of a multimodal neurophysiologic assessment tool in distinguishing between individuals with and without a history of mild traumatic brain injury

Contact Info

Product

Resources

About