Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0028738 (nystagmus)
 7,431 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

To 22 hard-of-hearing school pupils a 2 sec. tone pip of 1500 Hz was presented at 120 to 130 dB SPL's (equals 113-123 dB ISO) to both (=44) ears. In 32 of the ears (?) the sound stimulus elicited an ENG change and thus a possible disturbance of equilibrium, 2 cases of type A, 3-10 sec. nystagmus; I case of type B, with continuing nystagmus; 3 cases of type C, with strengthening nystagmus; and I case of type D, with direction-changing nystagmus, were found. We conclude that, in perceptive hearing defects, the maximum output of hearing aids should be limited to 120 dB, not only because of the effect on hearing thresholds. but also on the equilibrial sense. Again we recommend that hearing aids should not be used in those surroundings where loss of equilibrium is dangerous.
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PMID:Equilibrial disturbances caused by hearing aids in hard of hearing children. 85 24

In 10 healthy individuals the influence of a rotating sound source (loudspeaker, narrow band noise 500 Hz, 70 dB SPL, 120 degrees/sec.) on the postrotatory nystagmus was investigated. If the loudspeaker was rotating in the opposite direction of the fast postrotatory nystagmus component, the duration and intensity of the postrotatory nystagmus was amplified by about 30%. If the loudspeaker was rotating in the direction of the fast postrotatory nystagmus component, no changes were seen.
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PMID:[Effect of a rotating sound source on postrotatory nystagmus]. 326 Mar 17