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.
Auditory hallucinations. Auditory hallucinations usually involve voices talking to or about the person. Most of the time, the voices either provide a running commentary on whatever the schizophrenic individual is doing or they tell the person what he/she should do.