title: Differences between low and high trait impulsivity are not associated with differences in inhibitory motor control.
abstract: OBJECTIVE
  The present study investigates whether there is an association between trait impulsivity in the normal population and inhibitory motor control as assessed by the stop task.
  
  
  METHODS
  Low- and high-impulsive participants (as assessed by the I7 questionnaire; both groups n = 31) performed the stop task. Differences in performance were analyzed by an independent samples t-test. Furthermore, a short meta-analysis was performed on this study and three previous studies with a similar aim.
  
  
  RESULTS
  The low- and high-impulsive groups did not differ on the speed to stop the response (SSRT). However, the meta-analysis revealed that high-impulsives are marginally slower in stopping than low-impulsives (effect size = -0.26, p= 0.06).
  
  
  CONCLUSIONS
  There is only minor evidence that impulsivity inthe common population is associated with poor inhibitory motor control.
authors.affiliation: Utrecht University, Department of Psychopharmacology, Utrecht, The Nertherlands. m.lijffijt@pharm.uu.nl
authors.forename: M
authors.initials: M
authors.lastname: Lijffijt
authors.forename: E M
authors.initials: EM
authors.lastname: Bekker
authors.forename: E H
authors.initials: EH
authors.lastname: Quik
authors.forename: J
authors.initials: J
authors.lastname: Bakker
authors.forename: J L
authors.initials: JL
authors.lastname: Kenemans
authors.forename: M N
authors.initials: MN
authors.lastname: Verbaten
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis* / Q000523:psychology; D004645:Empathy; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D007266:Inhibition, Psychological; D008297:Male; D010364:Pattern Recognition, Visual; D010552:Personality Assessment; D011594:Psychometrics; D011597:Psychomotor Performance; D011930:Reaction Time; D015203:Reproducibility of Results; D013334:Students / Q000523:psychology