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The goal of the current investigation was to probe the deficits in the alerting, orienting and executive components of visuospatial attention in individuals who have recently suffered a mild traumatic brain injury (mTBI) and to assess the rate and degree of recovery for each of these components over a month post-injury. A group design was employed to assess(More)
Throughout our life span we encounter challenges that require us to adapt to the demands of our changing environment; this entails learning new skills. Two primary components of motor skill learning are motor acquisition, the initial process of learning the skill, and motor transfer, when learning a new skill is benefitted by the overlap with a previously(More)
Concussion, or mild traumatic brain injury (mTBI), leads to a number of cognitive, attentional, and sensorimotor deficits that can last a surprisingly long time after the initial injury. We have previously shown that the ability to orient visuospatial attention is deficient in participants with mTBI within 2 days of their injury, but then recovers to normal(More)
Mild traumatic brain injury (mTBI) leads to a variety of attentional, cognitive, and sensorimotor deficits. An important aspect of behavior that intersects each of these functions is the ability to cancel a planned action. Thus, the purpose of this study was to determine the effects of mTBI on the ability to perform a countermanding saccade task. In this(More)
BACKGROUND Following stroke it is common to exhibit deficits in mobility of the upper extremity. Constraint-induced therapy (CIT) is a rehabilitation technique used to promote use of the more affected hand via constraint of the less affected hand. One factor that could impact the outcome following CIT is hand dominance. Years of preferred use of one hand(More)
Older adults show less lateralized task-related brain activity than young adults. One potential mechanism of this increased activation is that age-related degeneration of the corpus callosum (CC) may alter the balance of inhibition between the two hemispheres. To determine whether age differences in interhemispheric connectivity affect functional brain(More)
In many cases bilateral cortical activation in older adults has been associated with better task performance, suggesting that a greater reliance on interhemispheric interactions aids performance. Interhemispheric communication is primarily mediated via the corpus callosum (CC), however with advancing age the anterior half of the CC undergoes significant(More)
BACKGROUND AND PURPOSE Falls are highly prevalent and a significant source of complications post-stroke. This study tested the efficacy of standard physical therapy (based on the task-oriented approach) delivered in a massed practice paradigm. The purpose of this study was to test if the intensive massed practice intervention (6h/day for 2 consecutive(More)
OBJECTIVE This pilot study investigates the use of telerehabilitation to improve upper limb performance in chronic stages of stroke recovery. DESIGN Intervention study with pre/post/one month follow-up tests. METHODS Seven adults with chronic stroke participated in the study. Tests consisted of lab-based clinical and kinematic assessments. Participants(More)
OBJECTIVE The aim of this study was to examine proprioceptive performance in adults with hemiplegic cerebral palsy and the possibility that a home-based sensorimotor training program could improve proprioceptive performance. DESIGN This study is a preintervention/postintervention assessment of 12 adults participating in a home-based program consisting of(More)