Multipoint Linkage Analysis for EEG alpha power in fronto-central leads phenotype for chromosomes 1,6,11. Log of the Odds (LOD) score (Y-axis) is plotted for the chromosome location map (in centimorgans (cM), X-axis). Nearest markers to the peak are presented within the support interval. Horizontal bars are presented to indicate the support interval and LOD score for other phenotypes where evidence for linkage has been found in this population. ADPD = antisocial personality disorder, regular tobacco = smoking daily for a month or more, persistent tobacco = smoking 10 or more cigarettes a day for more than a year.