A person who experiences a loss of contact with reality marked by severe disturbances in thought, language, sensory perception, emotion regulation, and behavior would be diagnosed with?

The correct answer is psychosis

Psychosis is a mental disorder that causes people to perceive or interpret things differently from the people around them. This can involve hallucinations or delusions.

The word psychosis is used to describe conditions that affect the mind, where there has been some loss of contact with reality. During a psychotic episode, a person's thoughts and perceptions are disturbed and the individual may have difficulty understanding what is real and what is not. Symptoms of psychosis include delusions (false beliefs) and hallucinations (seeing or hearing things that others do not see or hear).