Summating Potentials in the Three Cochclear Scalae

摘要: Summating potentials (SP) in response to tone bursts were measured from all three scalae of the first, second, and third turns guinea pig cochleae. Both intensity frequency stimulus varied over a wide range values, averaging techniques used obtain summating potential. The scala media (SM) was compared tympani (ST) vestibuli (SV) responses, as well potential gradient across cochlear partition common two perilymphatic scalae. former these quantities is defined DIF = (SV−ST)/2, while latter AVE = (SV+ST)/2 [Dallos et el., Science 170, 641–644 (1970)]. It demonstrated that at any location (DIF) are best correlated dependence magnitude polarity upon parameters. Aside similarities patterns, some significant differences also noted. Prob...