“…Gilbert (1995) speculated that the reason for this association might be that nicotine could reduce “anhedonia, apathy, boredom, blunted affect, and emotional withdrawal while improving attentional process” (p. 172). To the extent to which symptomatology along a schizophrenic spectrum reflects etiologic commonalities (Miller, Useda, Trull, Burr, & Minks-Brown, 2001), our findings should not be considered surprising. Indeed, our findings suggest that in clinical psychotic disorders, comorbidity with TD may reflect, at least in part, a phenomenon related to personality-level characteristics and not overt psychosis.…”