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.
There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Some of the more common possible causes of hallucinations include:  High fever - A high fever, especially in children, can evoke hallucinations, consciousness changes, or dream-like states that resemble hallucinogenic states.