When the Associated Press published Julia Le Duc's photograph of a drowned Salvadoran man, Óscar Alberto Martínez Ramírez, and his 23-month old daughter Valeria, it sparked outrage on social media. According to Le Duc, Ramírez had attempted to cross the Rio Grande after realizing he couldn't present himself to U.S. authorities to request asylum.

But beyond raising awareness via Twitter and Facebook feeds, does an image like this one have the power to sway public opinion or spur politicians to take action?

As journalism and psychology scholars interested in the effects of imagery, we study the ability of jarring photos and videos to move people from complacency to action. While graphic imagery can have an immediate impact, the window of action – and caring – is smaller than you'd think.

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