抄録
Post-stimulatory effects of extracochlear rectangular wave current stimulation on electrocochleogram were obtained from the guinea pig. Rectangular wave currents produced an increase in the N1 amplitude of action potentials for several minutes from the finished point of electrical stimulation. The recording of electrocochleogram and electrical stimulation were made through one silver ball electrode on the round window membrane. During and after electrical stimulation no change was observed in endo-cochlear potentials and cochlear microphonics. Also no change of action potentials from the opposite cochlea was confirmed. These changes on electrocochleogram suggest the influence of the mechano-electric transduction mechanism of outer hair cells.