“Given that our right hemispheres do the rapid emotional processing, Dr. Tim Indersmitten and Professor Ruben Gur from the University of Pennsylvania hypothesized that we might actually make more sense of expressions on the right side of the face if these were presented for a very short period of time. They flashed up faces made of right or left sides of the face only, but because pictures of half a face look so strange, Indersmitten and Gur did something very cunning. They used “symmetrical chimeric faces”—photographs of faces where either the left or right half is duplicated and flipped to make a symmetrical face (Figure 2). Although the facial expressions were indeed more exaggerated in pictures made up of two left halves of the face, volunteers made far fewer mistakes when interpreting the emotions in the pictures made up of two right halves of the face, particularly when asked to make decisions in under six seconds.9”