title: Test-retest reliability of eye tracking during the visual probe task in cocaine-using adults.
abstract: BACKGROUND
  Stimuli associated with cocaine use capture attention. Evidence suggests that fixation time measured on the visual probe task is a valid measure of cocaine cue attentional bias. The aim of this experiment was to demonstrate the test-retest reliability of cocaine cue attentional bias as measured by fixation time during the visual probe task.
  
  
  METHODS
  In a within-subject, repeated-measures design, thirty-six non-treatment seeking cocaine-using adults completed a visual probe task with eye tracking.
  
  
  RESULTS
  Participants displayed an attentional bias to cocaine-related images as measured by fixation time across two occasions (F (1, 35) = 56.5, p < 0.0001). A Pearson correlation indicated significant test-retest reliability for this effect (r = 0.51, p = 0.001). Response time failed to detect an attentional bias and test-retest reliability was low (r = 0.24, p = 0.16).
  
  
  CONCLUSIONS
  Fixation time during the visual probe task is a reliable measure of cocaine cue attentional bias in cocaine-using adults across time.
authors.affiliation: University of Kentucky, College of Arts and Sciences, Department of Psychology, 110 Kastle Hall, Lexington, KY 40506-0044, USA; University of Kentucky, College of Medicine, Department of Behavioral Science, 140 Medical Behavioral Science Building, Lexington, KY 40536-0086, USA.
authors.forename: Katherine R
authors.initials: KR
authors.lastname: Marks
authors.affiliation: University of Kentucky, College of Arts and Sciences, Department of Psychology, 110 Kastle Hall, Lexington, KY 40506-0044, USA; University of Kentucky, College of Medicine, Department of Behavioral Science, 140 Medical Behavioral Science Building, Lexington, KY 40536-0086, USA.
authors.forename: Erika
authors.initials: E
authors.lastname: Pike
authors.affiliation: University of Kentucky, College of Arts and Sciences, Department of Psychology, 110 Kastle Hall, Lexington, KY 40506-0044, USA; University of Kentucky, College of Medicine, Department of Behavioral Science, 140 Medical Behavioral Science Building, Lexington, KY 40536-0086, USA; University of Kentucky, College of Medicine, Department of Psychiatry, 245 Fountain Court, Lexington, KY 40509, USA.
authors.forename: William W
authors.initials: WW
authors.lastname: Stoops
authors.affiliation: University of Kentucky, College of Arts and Sciences, Department of Psychology, 110 Kastle Hall, Lexington, KY 40506-0044, USA; University of Kentucky, College of Medicine, Department of Behavioral Science, 140 Medical Behavioral Science Building, Lexington, KY 40536-0086, USA; University of Kentucky, College of Medicine, Department of Psychiatry, 245 Fountain Court, Lexington, KY 40509, USA. Electronic address: crush2@email.uky.edu.
authors.forename: Craig R
authors.initials: CR
authors.lastname: Rush
mesh_terms: D000328:Adult; D001288:Attention / Q000502:physiology; D019970:Cocaine-Related Disorders / Q000175:diagnosis* / Q000523:psychology*; D003463:Cues; D005133:Eye Movements / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010775:Photic Stimulation / Q000379:methods*; D011930:Reaction Time / Q000502:physiology; D015203:Reproducibility of Results
keywords: Attention; Cocaine; Cue reactivity; Eye tracking; Reliability; Visual probe