title: Measuring processing speed after traumatic brain injury in the outpatient clinic.
abstract: OBJECTIVE
  To evaluate processing speed performance in outpatients with moderate-to-severe traumatic brain injury (TBI).
  
  
  METHODS
  Prospective cross-sectional observational study.
  
  
  METHODS
  Twenty outpatients with traumatic brain injury (TBI) were compared with 20 matched healthy subjects.
  
  
  METHODS
  Measurement by six instruments in the domains of simple reaction time (SRT), movement time (MT), and mental processing speed at a single time occasion.
  
  
  RESULTS
  Significant differences were found in speed but not accuracy of work between outpatients with TBI and healthy subjects. Simple reaction time was sensitive to predicting patients with moderate-to-severe TBI as opposed to healthy counterparts.
  
  
  CONCLUSIONS
  Outpatient clinics should consider measuring SRT.
authors.affiliation: Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR. rsnkfong@polyu.edu.hk
authors.forename: Kenneth N K
authors.initials: KN
authors.lastname: Fong
authors.forename: Marko K L
authors.initials: MK
authors.lastname: Chan
authors.forename: Peggie P K
authors.initials: PP
authors.lastname: Ng
authors.forename: Serena S W
authors.initials: SS
authors.lastname: Ng