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).
Voices are the most common type of hallucination in schizophrenia. Many people with the disorder hear voices. The voices may talk to the person about his or her behavior, order the person to do things, or warn the person of danger.
Kinesthetic hallucination is an hallucination involving the sense of bodily movement. Lilliputian hallucination is an hallucination in which things, people, or animals seem smaller than they would be in reality. Olfactory hallucination is an hallucination involving the sense of smell. Somatic hallucination is an hallucination involving the perception of a physical experience occurring with the body. Tactile hallucination is an hallucination involving the sense of touch. Visual hallucination is an hallucination involving the sense of sight.