Accession Number : AD0635518

Title :   VERTIGO AMONG DIVERS.

Descriptive Note : Special rept (Interim).

Corporate Author : NAVAL SUBMARINE MEDICAL CENTER GROTON CONN MEDICAL RESEARCH LAB

Personal Author(s) : Terry, Lewis ; Dennison,W. Landon

Report Date : 08 APR 1966

Pagination or Media Count : 11

Abstract : Vertigo is a common symptom among divers, although its incidence has not heretofore been given the consideration it may deserve. The authors feel that the incidence of this symptom among divers is in consonance with the experience of the diver, that is, many divers will experience vertigo if they dive long enough. Vertigo must be recognized and differentiated from the more severe forms of dysbarism, particularly when it manifests itself by a loss of balance, nausea, and unconsciousness. Both pressure changes within the middle ear and caloric stimulation may play an important role in the development of vertigo among divers. Inequality of the caloric stimulation (between the right and left ear) appears to play only a minor role. The important factor seems to be the movement of endolymph, whether by eddy currents from movements of the stapes or convection currents caused by caloric stimulation. (Author)

Descriptors :   (*VERTIGO, DIVING), (*NAVAL PERSONNEL, VERTIGO), EAR, STIMULATION(PHYSIOLOGY), PRESSURE, BODY FLUIDS, MOTION

Subject Categories : Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE