TheLadders report [PDF] is based on data from an eye-tracking study of 30 professional recruiters who were monitored over a 10-week period as they they performed online tasks, including resume and candidate profile reviews.  Recruiters’ eyes while reviewing LinkedIn profiles (below) fixated on strong visual
elements, spending 19% of their time looking at profile pictures.

LinkedIn Profile Eyetracking Scan Order [HEATMAP]