one type of poor impulse control, impulsive aggression (the tendency to react to frustration and/or provocation with aggression), is often prominent in disruptive behavior disorders, and has been shown to predict suicidal behavior (Apter et al. 1995; Beautrais et al. 1999), independent of depression (Apter et al. 1988; Brent et al. 1988, 1993; Cohen-Sandler et al. 1982; Kovacs et al. 1993; Pfeffer et al. 1983).
