“…Kaplan et al, 1983;McCusker and Brown, 1991;Kaplan et al, 1985;Cooney et al, 1997;Glautier and Drummond, 1994;McCaul et al, 1989aMcCaul et al, , 1989bStormark et al, 1995], although their experimental designs, including cues, induction methods, and features of participants differ from one another. Rajan et al [1998] even deemed it as a reliable indicator of cue reactivity. Nevertheless, the studies of Pomerleau et al [1983], Eriksen and Goetestam [1984], and Greeley et al [1993] implicate either no elevation or reduction.…”