NYSTAGMUS is the most commonly employed objective sign of vestibular stimulation. The gradual acceptance and employment of electronystagmography (ENG) as a clinical tool for recording nystagmus has allowed detailed analysis of this important reflex. By carefully controlled experiment, and by the accident of clinical trial and error has emerged the knowledge that many factors influence the nystagmic response besides the intensity of vestibular stimulation. There is a myriad of neural mechanisms playing on the central vestibular centers or their effectors constantly modulating, suppressing, facilitating, or shunting these responses to other organ systems. We should not be surprised at the vast array of interconnections if we recall the importance of the basic function of the proprioceptive system: to relate the organism to its surroundings. Without this ability all other attributes of the organism are worthless in the struggle for survival. Therefore, many mechanisms subserve this function and, when one fails, other
Litton WB, McCabe BF. Controllable Variables in Vestibulometry. Arch Otolaryngol. 1967;86(4):445–448. doi:10.1001/archotol.1967.00760050447017
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