[Influence of the contralateral acoustic stimulation on the acoustic otoemissions: response modulation by the efferent olivocochlear system].
We have correlated in 16 patients (32 ears), the modifications de EOEs before and after sound stimulation of the contralateral ear. The recording of the EOEs has been performed in a sound proof room with ILO 88 from Otodynamics Ltd., the analysis has been made with the ILO 88 V.3.5 software. We have tried to study the modulator rol of the medial efferent coclear system on the external ciliated cells. In the results we observe a decrease of the amplitude in the EOEs when the contralateralmears is stimulated a white noise, in relation with the nonstimulation situation. When pures tones are used contralateral stimulation the decrease in the EOEs amplitude takes place in the same frequency spectrum as the pure tone used.
Morant Ventura
A
A
Servicio de ORL, HCU Valencia.
Marco Algarra
J
J
Caballero Mallea
J
J
Orts Alborch
M
M
Sequi Canet
J M
JM
Mir Planas
B
B
D000161:Acoustic Stimulation; D003051:Cochlea / Q000502:physiology*; D004525:Efferent Pathways / Q000502:physiology; D006801:Humans; D009847:Olivary Nucleus / Q000502:physiology*; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology*
Influencia de la estimulación acústica contralateral sobre las otoemisiones acústicas: modulación de la respuesta por el sistema eferente olivococlear.