A Single Error Is One Too Many: The Forced Choice Recognition Trial of the CVLT-II as a Measure of Performance Validity in Adults with TBI.

Objective: The Forced Choice Recognition (FCR) trial of the California Verbal Learning Test-Second Edition (CVLT-II) was designed to serve as a performance validity test (PVT). The present study was designed to compare the classification accuracy of a more liberal alternative (≤15) to the de facto FCR cutoff (≤14).

Method: The classification accuracy of the two cutoffs was computed in reference to psychometrically defined invalid performance, across various criterion measures, in a sample of 104 adults with TBI clinically referred for neuropsychological assessment.

An examination of the Wechsler Adult Intelligence Scales, Fourth Edition (WAIS-IV) in individuals with complicated mild, moderate and Severe traumatic brain injury (TBI).

This study examined the clinical utility of the Wechsler Adult Intelligence Scales-Fourth Edition (WAIS-IV) in individuals with complicated mild, moderate or severe TBI. One hundred individuals with TBI (n = 35 complicated mild or moderate TBI; n = 65 severe TBI) and 100 control participants matched on key demographic variables from the WAIS-IV normative dataset completed the WAIS-IV. Univariate analyses indicated that participants with severe TBI had poorer performance than matched controls on all index scores and subtests (except Matrix Reasoning).

Aggregating validity indicators embedded in Conners' CPT-II outperforms individual cutoffs at separating valid from invalid performance in adults with traumatic brain injury.

Continuous performance tests (CPT) provide a useful paradigm to assess vigilance and sustained attention. However, few established methods exist to assess the validity of a given response set. The present study examined embedded validity indicators (EVIs) previously found effective at dissociating valid from invalid performance in relation to well-established performance validity tests in 104 adults with TBI referred for neuropsychological testing.

Characteristics of a mild head injury subgroup with extreme, persisting distress on the Rivermead Postconcussion Symptoms questionnaire.

Unlabelled: Kirsch NL, de Leon MB, Maio RF, Millis SR, Tan-Schriner CU, Frederiksen S. Characteristics of a mild head injury subgroup with extreme, persisting distress on the Rivermead Postconcussion Symptoms Questionnaire.

Objective: To examine baseline variables and identify characteristics of participants with extremely high reports of symptoms (ie, outliers) 12 months after mild head injury (MHI).

Evaluating a clinical measure of reaction time: an observational study.

The present study was an initial evaluation into the reliability and validity of a novel clinical measure of reaction time that consists of a vertical cylinder that is released and caught as quickly as possible. 65 healthy adults performed clinical and computerized reaction time tasks (RT(clin) and RT(comp)) under simple and dual-task conditions. RT(clin) demonstrated excellent test-retest and interrater reliabilities and was significantly correlated with the criterion standard RT(comp).

Baseline predictors of fatigue 1 year after mild head injury.

Objective: To compare reports of fatigue 12 months after minor trauma by participants with mild head injury (MHI) with those with other injury, and identify injury and baseline predictors of fatigue.

Design: An inception cohort study of participants with MHI and other nonhead injuries recruited from and interviewed at the emergency department (ED), with a follow-up telephone interview at 12 months.

Setting: Level II community hospital ED.

Health status, not head injury, predicts concussion symptoms after minor injury.

Objective: Postconcussion (PC) syndrome etiology remains poorly understood. We sought to examine predictors of persistent PC symptoms after minor injury.

Methods: Health status, symptom, and injury information were obtained on a sample of patients presenting to the emergency department after minor injury.

Distributed cognitive aid with scheduling and interactive task guidance.

A cognitive assistive technology system has been designed for use by people with memory and organizational impairments. This system will provide a distributed architecture for both scheduling assistance and task guidance, as well as intelligent, automatic replanning on the levels of both the schedule and individual tasks. A prototype of this architecture has been developed that focuses on interactive task guidance capabilities.

Chronic stress, salivary cortisol response, interpersonal relatedness, and depression among community-dwelling survivors of traumatic brain injury.

Depression is a common mood disorder after traumatic brain injury (TBI). Largely, study of this phenomenon is theoretical and without biological measures. This explanatory study, guided by McEwen's allostasis model of stress, examined relationships among chronic stress, salivary cortisol profiles, post-injury depression, and interpersonal relatedness.

An assistive-technology intervention for verbose speech after traumatic brain injury: a single case study.

Objective: To assess an assistive-technology intervention for neurobehavioral change, coordinated with a Web-based data recording system.

Participant: Male, mid-thirties, with a complex history, having verbose speech subsequent to traumatic brain injury.

Design: BAB' single-case.

Chronic stress conditions do explain posttraumatic brain injury depression.

Psychosocial and biologic mechanisms are implicated in depression after traumatic brain injury (TBI). Using McEwen's stress theory of allostasis as a guidepost, this study examined whether pre- and postinjury chronic stress conditions could explain post-TBI depressive symptoms. Seventy-five community-dwelling persons who sustained a mild-to-moderate TBI and were within 2 years of the injury participated in this cross-sectional study.

A generic, 'in-house', alphanumeric paging system for prospective activity impairments after traumatic brain injury.

Objective: For settings having suitable infrastructure, generic, 'in-house' alphanumeric paging systems can be constructed that are fully under clinician control. Development of such a system for therapeutic application is described and a single-case study presented that assessed whether the system could improve repetitive, prospective use of a daily planner.

Design: ABA' single case.

Chronic stress, sense of belonging, and depression among survivors of traumatic brain injury.

Purpose: To test whether chronic stress, interpersonal relatedness, and cognitive burden could explain depression after traumatic brain injury (TBI).

Design: A nonprobability sample of 75 mild-to-moderately injured TBI survivors and their significant others, were recruited from five TBI day-rehabilitation programs. All participants were within 2 years of the date of injury and were living in the community.