Nonverbal communication
Nonverbal communication gives people who lack the ability to communicate verbally the ability to express things that otherwise could not be expressed verbally, which makes it easier to identify and understand their disorder. People with autism often have difficulty with both verbal and nonverbal communication. Autistic people have trouble reading social cues and are often unresponsive to bodily messages and to their environment. Major depression give messages of distress such as loss of energy, sleep disturbances, difficulty concentrating, and lack of motivation to signify their mental situation.