Excited audience members in Australia. Stimulation or sensory excitation is the action of various agents or forms of energy (stimuli) on receptors that generate impulses that travel through nerves to the brain (afferents).
Auditory Hallucinations. Theses auditory, or aural, hallucinations are the most common type of schizophrenia hallucination. They are a disruption of the normal hearing process, involving hearing annoyances such as clicks, hums, or screeches, and can be as complex as hearing complete voices.
Parkinsonâs disease, depression, psychosis, and epilepsy medications may trigger hallucination symptoms. Other conditions that can cause hallucinations include: 1  terminal illnesses, such as AIDS, brain cancer, or kidney and liver failure. 2  high fevers, especially in children and the elderly.3  migraines. 4  social isolation, particularly in older adults. 5  seizures. 6  deafness, blindness, or vision problems.ther conditions that can cause hallucinations include: 1  terminal illnesses, such as AIDS, brain cancer, or kidney and liver failure. 2  high fevers, especially in children and the elderly. 3  migraines. 4  social isolation, particularly in older adults. 5  seizures.