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.
Mental illnesses are among the most common causes of hallucinations. Schizophrenia, dementia, and delirium are a few examples. Substance abuse is another fairly common cause. Some people see or hear things that arenât there after drinking too much alcohol or taking drugs like cocaine or PCP.ental illnesses are among the most common causes of hallucinations. Schizophrenia, dementia, and delirium are a few examples. Substance abuse is another fairly common cause. Some people see or hear things that arenât there after drinking too much alcohol or taking drugs like cocaine or PCP.