a system and method for assessing sexual attention of a test subject comprising : a computer readable medium ; a display ; an eye - tracking sensor ; a set of display sets where each display set has images representing individuals having a plurality of different genders and age groups wherein each display set contains images having a unique combination of gender and age group ; and ; a set of computer readable instructions embodied in said computer readable medium for display said display sets on said display , determining the test subject &# 39 ; s eye fixation time for each image , determining the test subjects saccade time for each displayed image , determining a gaze score according to said fixation time and said saccade time , and determining a gaze score for each combination of gender and age group .