Final answer:
People with schizophrenia experiencing hearing voices or feeling sensations such as bugs crawling under their skin are suffering from hallucinations, a disorder of perception associated with the illness. Antipsychotic medications can treat these symptoms but are not a cure.
Step-by-step explanation:
When individuals with schizophrenia experience sensations such as hearing voices or feeling bugs crawling under their skin, they are experiencing hallucinations. Hallucinations are disorders of perception where a person perceives something that isn't present in reality, which can affect any of the senses. These contrast with delusions, which are false beliefs maintained despite evidence to the contrary. Schizophrenia is a mental illness characterized by symptoms that impair a person's ability to distinguish between reality and imagination, alongside emotional irregularities and difficulties in thinking and social interaction. While antipsychotic medications can be effective in treating schizophrenia symptoms such as hallucinations, they do not cure the disease, and ongoing treatment is often necessary.