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.
Common hallucinations can include: 1  Feeling sensations in the body, such as a crawling feeling on the skin or the movement of internal organs. 2  Hearing sounds, such as music, footsteps, windows or doors banging.  Hearing voices when no one has spoken (the most common type of hallucination).