“…Dopaminergic neuronal function modulates feeding behavior (Szczypka et al, 1999(Szczypka et al, , 2000, motor activity (Kalivas, 1993), and rewardmotivated (Blum et al, 1995;Salamone, 1996) and drugseeking behavior (Bardo et al, 1996). Aside from their wellknow disturbances of feeding and weight maintenance, individuals with AN have stereotypic and hyperactive motor behavior (Kron et al, 1978;Beumont et al, 1994), anhedonic, obsessional personalities, and reduced novelty seeking (Sohlberg and Strober, 1994). Moreover, we have shown that individuals who have recovered from AN exhibit significantly lower CSF homovanillic acid concentrations than individuals with a history of BN diagnosis or control individuals (Kaye et al, 1999).…”