Table 2

Measures of Impulsivity in Young Adults With Antisocial Personality Disorder

TaskAntisocial Personality Disorder (n = 17)Controls (n = 229)pd
BIS
    Attention impulsiveness17.6 (5.3)16.4 (4.2)0.265
    Motor impulsiveness25.8 (7.3)23.5 (4.9)0.081
    Nonplanning impulsiveness24.4 (7.0)24.4 (6.0)0.958
EIQ
    Impulsivity13.4 (5.7)9.8 (5.8)0.0150.63
    Venturesomeness18.9 (7.5)13.9 (7.0)0.0050.69
    Empathy18.3 (9.3)14.8 (7.2)0.057
IDED total errors (adjusted)30.4 (21.5)26.1 (26.0)0.516
SST SSRT216.6 (82.0)182.2 (61.9)0.0320.47
SST median correct RT on GO trials529.0 (255.1)475.8 (152.1)0.190
CGT Risk adjustment0.73 (0.86)1.40 (1.21)0.0250.64
CGT overall proportion bet0.580 (0.162)0.547 (0.138)0.352
CGT quality of decision making0.931 (0.068)0.934 (0.102)0.878
SWM strategy33.2 (5.1)30.7 (6.2)0.105
SWM total errors27.5 (20.9)20.2 (18.7)0.129
OTS Problems solved on first choice15.9 (4.5)17.4 (3.9)0.128
  • All data are expressed as the mean (SD). Significance was set at p < 0.05. BIS, Barratt Impulsivity Scale; EIQ, Eysenck Impulsivity Questionnaire; IDED, Intradimensional/Extradimensional Set-Shift Task; SST, Stop-Signal Task; CGT, Cambridge Gamble Task; SWM, Spatial Working Memory Task; OTS, One-Touch Stockings of Cambridge Task; d, Cohen's d effect size.