Innovative Technique Gives Vision Researchers Insight Into How People Recognize Faces

It is no surprise to scientists that the largest social network on the web is called Facebook. Identifying people by their face is fundamental to our social interactions, one of the primary reasons vision researchers are trying to find out how our brain processes facial identity. In a study recently published in the Journal of Vision, scientists used an original approach -- a method that "shakes" the brain gently and repeatedly by making an image appear and disappear at a constant rate -- to evaluate its sensitivity to perceiving facial identity. The technique is called steady-state visual evoked potential (SSVEP).

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