OBJECTIVE: To prospectively measure the immediate neurocognitive effects and early
course of recovery from concussion and to examine the effects of loss of consciousness …

Object. A computerized neuropsychological test battery was conducted to evaluate memory
dysfunction and self-reporting of symptoms in a group of high school athletes who had …

Objective: To extend previous research designs and examine cognitive performance up to
30 days postconcussion. Method: A prospective cohort design was used to examine 2000 …

OBJECTIVE: We sought to determine the duration of cognitive impairment after sports
concussion. METHODS: We conducted a study with a prospective design in which 729 …

Objective: To investigate the importance of loss of consciousness (LOC) in predicting
neuropsychological test performance in a large sample of patients with head injury. Design …

Objective: The effects of concussion on mental status are often difficult to assess on routine
clinical examination. I investigated the efficacy of standardized mental status testing on the …

Object. Current grading systems of concussion and return-to-play guidelines have little
empirical support. The authors therefore examined the relationships of the characteristics …

Introduction: Neuropsychological testing is a valuable tool in concussion diagnosis and
management. ImPACT, a computerized neuropsychological testing program, consists of …

ContextLack of empirical data on recovery time following sport-related concussion hampers
clinical decision making about return to play after injury. ObjectiveTo prospectively measure …

Context: Clinicians sometimes treat concussed individuals who have amnesia, loss of
consciousness (LOC), a concussion history, or certain symptom types more conservatively …