The answer is Schizophrenia. Schizophrenia is a mental illness which includes abnormal social behavior and failure in understanding what is real or not. Schizophrenia includes experiencing the symptoms mentioned, such as false beliefs, confusion or unclear in thinking, hearing voices that aren’t heard by anyone else besides you and reduced social engagement and emotional expressiveness, and lastly the lack of motivation. In the given symptoms and description of the illness, this is the psychological disorder that is characterized by major disturbances in terms of an individual’s thought, perception and human behavior.