“…These include studies on substance abuse (Finn, Zeitouni, & Pihl, 1990;Taylor, 2004), harm avoidance (e.g., Grillon & Ameli, 2001), impulsivity and impulsive asociality (e.g., Benning, Patrick, & Iacono, 2005;Verschuere, Crombez, De Clercq, & Koster, 2005), fearlessness (e.g., van Goozen, Snoek, Matthys, van Rossum, & van Engeland, 2004), conduct problems (Quay, 1997), and antisocial personality characteristics (e.g., Babcock, Green, Webb, & Yerington, 2005;Lorber, 2004;Patrick et al, 1993;Patrick, Cuthbert, & Lang, 1994). Among the most widely studied psychophysiological measures are cardiovascular (e.g., heart rate, blood pressure), electrodermal, and startle eyeblink responses.…”