Psychotic disorders are defined as mental health conditions that can cause a person to lose sight of reality or which cause drastic changes in personality and behavior. Psychotic episodes that can result from these disorders will often cause a person to become unable to distinguish reality from hallucinations or paranoid delusions. These episodes can also lead to incoherent speech and chaotic behavior where a person may participate in high-risk activities or situations and lose touch with their loved ones. Some common psychotic disorders include schizophrenia and schizoaffective disorder, delusional disorder, and paraphrenia. Psychotic disorders can also be the result of certain medical conditions such as brain tumors or a symptom of substance abuse.