At some point, you may have noticed a poster or photo with eyes on it hanging somewhere public. What you probably didn’t notice is the effect that picture has on your brain.
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Sources:
http://www.sciencedirect.com/science/article/pii/S1090513805000036
http://www.sciencedirect.com/science/article/pii/S1090513810001224
http://journals.sagepub.com/doi/full/10.1177/1474704915594959
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1686213/?_escaped_fragment_=po=6.52174
https://link.springer.com/article/10.1007%2Fs10683-011-9312-6?LI=true
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0051738
http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0082055&type=printable
http://journals.sagepub.com/doi/abs/10.1177/147470491401200502
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Images:
https://commons.wikimedia.org/wiki/File:Abraham_Lincoln_O-116_by_Gardner,_1865.png
https://commons.wikimedia.org/wiki/File:Kumbum_eyes.jpg
https://commons.wikimedia.org/wiki/File:Blue-green_eyes.jpg
https://commons.wikimedia.org/wiki/File:160327_White_dice_07.jpg
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