The tonotopic map of the avian basilar papilla (Callus domesticus) will be identified for two age groups (E16-17 and 2 weeks post hatch). This will be undertaken to test the hypothesis that the tonotopic map changes substantially throughout development and is not simply a """"""""scale model"""""""" of the adult. To accomplish this, individual eighth nerve neurons will be impaled. The characteristic frequency and spontaneous rate will be determined. Horseradish-peroxidase (HRP) will be iontophoretically injected into the cell and allowed to distribute throughout the cell as a cell tag. Terminals in the basilar papilla will then be identified histologically and their position expressed as a percent of the total length and width of the basilar papilla.
| Jones, S M; Jones, T A (1995) The tonotopic map in the embryonic chicken cochlea. Hear Res 82:149-57 |
| Jones, S M; Jones, T A (1995) Neural tuning characteristics of auditory primary afferents in the chicken embryo. Hear Res 82:139-48 |
| Jones, T A (1992) Vestibular short latency responses to pulsed linear acceleration in unanesthetized animals. Electroencephalogr Clin Neurophysiol 82:377-86 |
