Prosopagnosia is a neurological condition characterized by the inability to recognize the faces of similar people. People with this condition have difficulty recognizing family members, close friends and even themselves. Prosopagnosic's have a hard time knowing whether they have seen a face before which can result in a variety of social and relationship issues. People with this condition usually use non facial information to recognize people such as hair, clothing, and voice. Prosopagnosia results from problems in the face recognition network in the brain. Since there are many connections between areas that contribute to facial processing, there are many ways for the network to malfunction and cause prosopagnosia.