Abstract:
The purpose of this study was to examine the validity of ImPACT, a computerized neuropsychological test battery, for measuring attention and processing speed in athletes with concussions. This was accomplished by comparing the computerized testing to a traditional neuropsychological measure, the Symbol Digit Modalities Test. Participants were 72 amateur athletes who were seen within 21 days of sustaining a sports-related concussion. As predicted, the SDMT correlated most highly with the Processing Speed and Reaction Time composites from ImPACT.
Abstract:
Neurocogntive testing has been endorsed as a 'cornerstone' of concussion management by recent Vienna and Prague meetings of the Concussion In Sport Group. Neurocognitive testing is important given the potential unreliability of athlete self-report after injury. Relying only on athletes' reports of symptoms may result in premature return of athletes to contact sport, potentially exposing them to additional injury.
Abstract:
Normative Data for the ImPACT Composite Scores
A sample of 205 elementary, junior high, and high school students was initially used for this project. Three of these subjects had incomplete test data and were subsequently dropped from the normative sample. The current normative sample consists of 102 boys and 100 girls between the ages of 11 and 14. Multiple analysis of variance (MANOVA) was performed to allow an analysis of performance differences between gender and age across multiple neuropsychological domains.
Abstract:
Neuropsychological testing is a variable tool in concussion diagnosis and management. ImPACT, a computerized neuropsychological testing program, consists of eight cognitive tasks and a 21-item symptom inventory. ImPACT was used to examine the cognitive performance of 104 concussed athletes at baseline, 2, 7, and 14 days post-injury. Dependent measures included composite scores from the ImPACT computerized test battery, as well as a total symptom score from the Post-Concussion Symptom Scale.
Abstract:
This study explored the diagnostic utility of the composite scores of Immediate Post-Concussion Assessment and Cognitive Testing and Post Concussion Symptom Scale scores. Recently concussed high school athletes were tested within 72h of sustaining a concussion, and data were compared to non-concussed high school athletes with no history of concussion.
Abstract:
Recent concussion management guidelines have suggested that athletes with mild (grade 1) concussions may be returned to play if asymptomatic for 15 minutes. The purpose of this study was to assess the utility of a current concussion management guideline in classifying and managing mild concussion. Forty-three high school athletes completed neuropsychological test performance and symptom ratings prior to the season and at two times during the 1st week following mild concussion.
Abstract:
The purpose of this study was to examine the psychometric characteristics of Version 2.0 of ImPACT. The focus was on the stability of the test scores and the calculation of reliable change confidence intervals for the test-retest difference scores. A sample of 56 nonconcussed adolescents and young adults completed the test battery on two occasions. Test-retest coefficients, reliable change difference scores, and confidence intervals for measurement error are provided. These reliable change parameters were applied to a second sample of 41 concussed amateur athletes who were tested preseason and within 72 hr of injury. Applying these confidence intervals allows more precise determinations of deterioration, improvement, and recovery in the initial days following concussion.
Abstract:
The purpose of this study was to examine the convergenet and divergent validity of computerized neuropsychological testing in a sample of athletes with conscussion.
Abstract:
The purpose of this handout is to provide normative data for ImPACT Version 2.0. ImPACT is a computerized neuropsychological test battery developed specifically for the evaluation of sports concussion.
Abstract:
The objective of this study was to evaluate memory dysfunction and self-report of symptoms in a group of concussed high school athletes utilizing a computerized neuropsychological test battery. Neuropsychological performance prior to and following concussion is compared with the test performance and age-matched comparison group. Potentially important diagnostic markers of concussion severity are discussed and linked to recovery within the first week of injury.
Abstract:
The relevance of headache to outcome following sports concussion is poorly understood and no studies exist examining this issue. The current study was conducted to investigate whether post-concussion headaches are associated with neurocognitive deficits and/or presence of other post-concussion symptoms at approximately one-week post injury. Study participants included 110 high school athletes who sustained concussion. Concussed athletes were divided into two groups, those reporting no headache at approximately day 7 post-injury and those reporting headaches. Dependent measures included symptom and neurocognitive test results collected via ImPACT, a computerized neuropsychological test battery.
Abstract:
The purpose of this study was to examine the relation between the subjective report of feeling foggy at one-week post concussion and acute neuropsychological outcome. The outcome variables were derived from a computerized neuropsychological screening battery (ImPACT). Participants were 110 high school students who sustained a sport-related concussion and were evaluated 5-10 days post injury...
Abstract:
Sports Medicine and Neurosurgery
