Unsurprisingly, in-person interaction resulted in much stronger signs of recognition than just watching videos of them. However, watching videos of new people or interacting with them in person led to enhanced brain activation upon seeing their faces later on. Their study, published May 24 in The Journal of Neuroscience, found that getting to know strangers by sorting photos of two unfamiliar people into their separate identities did not produce significant signs of familiarity in brain scans. The enormous rift between our recognition of unfamiliar versus familiar faces led Ambrus and his colleagues to wonder about how the brain's response evolves when a person goes from unknown to known. "If you take two photos with different cameras, and the person shaved or is not wearing glasses in one of them, it is surprisingly difficult to recognize with high accuracy people we are unfamiliar with." "With unknown faces, we are not particularly good at telling them apart," said Géza Gergely Ambrus, a postdoctoral researcher at Friedrich Schiller University Jena in Germany. Years of exposure to loved ones' faces allow the brain to easily pick them out of a crowd, despite variables like different hairstyles or emotional expressions.īut what about someone who isn't close, like a person you sat next to on the plane or a cashier at the grocery store? How does the brain do when it comes to identifying the face of a stranger? The short answer is, not very well. Recognizing the face of a family member or good friend is something that happens almost instantly and effortlessly.
0 kommentar(er)
