“…In this context, the neuropeptide galanin (Tatemoto et al, 1983) is of particular interest, since it coexists with NA in the locus coeruleus (LC) and with 5-HT in the dorsal raphe (DR) nucleus (Melander et al, 1986;Xu and Hökfelt, 1997;Xu et al, 1998b). Electrophysiological, behavioral, and neurochemical studies have shown that galanin exerts modulatory (mainly inhibitory) effects on both the noradrenergic and serotonergic systems (Seutin et al, 1989;Sevcik et al, 1993;Pieribone et al, 1995;Xu et al, 1998c;Razani et al, 2001;Kehr et al, 2002;see Ö gren et al, 2006).…”