Long-term electrode implantation for recording cochlear electrical activity in guinea pigs.
Comparative measurements of the cochlear electrical activity over prolonged periods require long-term implantation of electrodes. During this time, changes in the electrode recording ability and/or impairment of the sound-conducting system, could erroneously be attributed to the experiment. To avoid this risk, an easy and reliable technique is described. The procedure uses the Fallopian canal as a route by which to approach the cochlear potentials' generators, while leaving the middle ear untouched.
D000200:Action Potentials; D000818:Animals; D003051:Cochlea / Q000033:anatomy & histology / Q000502:physiology*; D004567:Electrodes, Implanted; D005071:Evoked Potentials; D006168:Guinea Pigs; D008722:Methods; D013997:Time Factors