Interesting Abstract on Photo Portraiture from Biological Research Journal

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Ten naive subjects of both sexes, viewed equally scaled frontal pictures of 15 neutral-expression adult male faces, each photographed from distances of 56, 124 and 400cm. The photographs were corrected for lens distortion to obtain ideal perspective projections. The subjects were asked to rate each portrait according to 13 attributes (evil-good, repulsive-attractive, hostile-friendly, pushy-respectful, sad-happy, dishonest-honest, introvert-extrovert, violent-peaceful, dumb-smart, distant-approachable, evasive-candid, week-strong, unpleasant-pleasant). While the subjects were unaware of the manipulation, their ratings are systematically correlated with the distance: faces imaged from the closer distance appear significantly more benevolent (good, peaceful, pleasant, approachable), those taken from a larger distance appear more impressive (smarter, stronger). Intermediate-distance portraits appeared more attractive. The remaining attributes are not significantly different across distance.

http://www.journalofvision.org/content/7/9/992
 
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