Interference and distortion in the cochlear responses of the pigeon

Studies were made on 14 ears of 11 pigeons. The electrical activity resulting from stimulation was observed by means of a circuit consisting of an active electrode placed on the oval window, an amplifier, a wave analyzer, and an inactive electrode. The results showed that "in every relation studied the processes of interference and distortion as they appear in the pigeon are strikingly similar to these processes as observed in the mammals . . . . The results furnish further support for our previous conclusion that interference and distortion are relatively independent of the middle ear and the conductive structures of the inner ear, and that these processes probably arise in the hair cells of the organ of Corti."