Fig. 5

Relationship between reaction time and gaze behavior. Relationship between reaction time and the first-fixation (a) and the fixation-duration (b) ratios for the face, butterfly, and object (WS, MA, and CA groups). WS Williams syndrome group, MA mental age-matched group, CA chronological age-matched group. Open circles indicate outliers. The dashed line indicates the regression analysis including outliers and the solid line is the regression line excluding outliers. Colored and black values indicate the correlation excluding and including outliers, respectively. Note the different y-axis ranges for parts A and B