title: Computer-based neuropsychological screening for AIDS dementia complex.
abstract: OBJECTIVE
  To test the efficacy of reaction time (RT) measures as a screening test for AIDS dementia complex (ADC).
  
  
  METHODS
  Forty-two patients with mild-to-moderate ADC and 33 healthy HIV-1-seronegative control subjects took a computer-administered battery of four RT measures: simple RT, choice RT, and two types of sequential RT (1 and 2).
  
  
  RESULTS
  The performance of the ADC group was significantly worse than that of the control group on all four RT measures, but not all tasks were equally sensitive. The two tests of sequential RT were found to be the best discriminators, and receiver operating characteristic curves analyses indicated that the optimal cut-off z score was 1.0 for both tests.
  
  
  CONCLUSIONS
  These preliminary results suggest that computer-based RT, using these two measures of sequential RT, may provide a sensitive method of detecting HIV-1-associated cognitive deficits.
authors.affiliation: Department of Psychiatry, Massachusetts General Hospital, Boston 02114.
authors.forename: J L
authors.initials: JL
authors.lastname: Worth
authors.forename: C R
authors.initials: CR
authors.lastname: Savage
authors.forename: L
authors.initials: L
authors.lastname: Baer
authors.forename: E K
authors.initials: EK
authors.lastname: Esty
authors.forename: B A
authors.initials: BA
authors.lastname: Navia
mesh_terms: D015526:AIDS Dementia Complex / Q000175:diagnosis* / Q000503:physiopathology / Q000523:psychology; D000328:Adult; D000368:Aged; D003201:Computers; D005069:Evaluation Studies as Topic; D005260:Female; D015497:HIV-1; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000706:statistics & numerical data; D011930:Reaction Time; D012680:Sensitivity and Specificity