Figure 4From: COGA phenotypes and linkages on chromosome 2SNP Linkage analysis of EEG principal component phenotype. SIBPAL linkage analysis on chromosome 2 using only SNP data. Outcome variable is the first principal component calculated from all 13 EEG (electrophysiological) variables. Y-axis is the value of the Haseman-Elston regression coefficient. Significant values are indicated with circles.Back to article page