“…The evaluation of this endophenotype has evidenced that it is difficult to respond adequately to aversive stimuli and balance between a stimulus' positive and negative features in PD. Undoubtedly, one of the areas of the brain cortex most implicated in the irregular expression of PD is the orbitofrontal cortex; damages in this area implicate behavior changes and neurocognitive malfunction (Stevens, Kaplan, & Hesselbrock, 2003). With the use of evoked potentials, a decrease of the amplitude of the P300 wave has been observed in the frontal electrodes of individuals with high rates of aggressiveness (Bauer & Hesselbrock, 2001;Benning, Patrick, & Iacono, 2005;Kostandov, Tal'tse, Zakharova, & Vazhnova, 1994;Patrick et al, 2006).…”