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BACKGROUND Previous work suggests that reaction time variability (RTV) in attentional tasks, as a measure of cognitive stability, is associated with degree of Val loading in COMT Val(158)Met genotype, and that this association may be relevant for the aetiology of schizophrenia. This study examined (i) to what degree RTV pertaining to tasks of varying(More)
BACKGROUND Bipolar disorder (BPD) is a disabling disease with high morbidity rates. An international (Spain, France) comparative study about hospitalizations and in-patient care costs associated with BPD I was performed. Centers were included if they had access to a database of computerized patient charts exhaustively covering a defined catchment area. (More)
OBJECTIVES Psychotic patients with COMT(Val158Met) Met alleles were recently found to display more intense psychotic and affective responses to daily life stressors. We aimed to test the hypothesis that the Met allele is implicated in the development of affective and psychotic symptomatology in subjects genetically at risk for schizophrenia, by testing if(More)
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