A schizophrenic person might exhibit a wide variety of symptoms that can vary in intensity. They may experience powerful delusions, believing they are being persecuted or controlled by others, for example. Schizophrenia can also come with hallucinations, such as hearing voices. A schizophrenic person may suffer from disorganized speech and thought patterns, shifting quickly between topics as they make loose associations. Or they may repeat words or nonsensical phrases. Disorganized behavior, such as unusual movements or lack of impulse control, might also be apparent. An absence of normal behaviors, such as vocal inflection or facial expression, can make someone with schizophrenia seem withdrawn or unaware.