many physical and emotional disturbances can cause hallucinations. according to health-care the following are some of reasons that hallucinations may occur: brain disorders including leisions and injuries; sensory deprivation (as seen sometimes in the blind & deaf); emotional stress; sleep deprivation; mental illness as seen in schizophrenia; alcohol withdrawl; hallucinogenic drugs.
what are the diseases what can cause multimodal hallucinations. i know of dementia but what are the others? . the person does not use drugs alcohol and does not it is not a cafeine overdosis.