title: Multidimensional assessments of impulsivity in subjects with history of suicidal attempts.
abstract: OBJECTIVE
  This study aimed to examine whether subjects with history of suicidal attempts had higher impulsivity as measured by neurocognitive tests and self-report questionnaires. The interrelationships among different impulsivity measures were also explored.
  
  
  METHODS
  Fifty-four nonpsychotic psychiatric inpatients, including 24 subjects with previous history of suicidal attempts and 30 comparison subjects without previous suicidal attempts, completed the self-report Barratt Impulsiveness Scale-11-Chinese version (BIS-11-CH) and 2 neuropsychologic tests of impulsivity: the immediate memory task/delayed memory task (IMT/DMT) and the single key impulsivity paradigm (SKIP).
  
  
  RESULTS
  The results indicated that subjects with previous suicidal attempts exhibited higher BIS-11-CH factor 2 (lack of self-control/attentional impulsivity) subscore (P = .02) and more commission errors in IMT (P = .03). However, BIS-11-CH scores and performance indices of IMT/DMT and of SKIP did not correlate with each other.
  
  
  CONCLUSIONS
  Our findings supported that subjects with previous suicidal attempts had higher impulsivity, which could be revealed by both self-report and neurocognitive measures. However, there is no correlation among self-report, IMT/DMT, and SKIP measures, indicating that they might be measuring different dimensions of impulsivity.
authors.affiliation: Department of Psychiatry, Far East Memory Hospital, Taipei, Taiwan.
authors.forename: Chi-Shin
authors.initials: CS
authors.lastname: Wu
authors.forename: Shih-Cheng
authors.initials: SC
authors.lastname: Liao
authors.forename: Keh-Ming
authors.initials: KM
authors.lastname: Lin
authors.forename: Meg Mei-Chih
authors.initials: MM
authors.lastname: Tseng
authors.forename: Erin Chia-Hsuan
authors.initials: EC
authors.lastname: Wu
authors.forename: Shi-Kai
authors.initials: SK
authors.lastname: Liu
mesh_terms: D000328:Adult; D000342:Affective Symptoms / Q000175:diagnosis / Q000453:epidemiology; D015897:Comorbidity; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D008016:Life Change Events; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology; D001523:Mental Disorders / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology; D008960:Models, Psychological; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D010552:Personality Assessment / Q000706:statistics & numerical data*; D010555:Personality Inventory / Q000706:statistics & numerical data; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D011619:Psychotropic Drugs / Q000627:therapeutic use; D012720:Severity of Illness Index; D013406:Suicide, Attempted / Q000523:psychology / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires
chemical_list: D011619:Psychotropic Drugs