Non-invasive biophysical measurement of travelling waves in the insect inner ear
Frequency analysis in the mammalian cochlea depends on the propagation of frequency information in the form of sheath a travelling wave (TW) across tonotopically arranged auditory sensilla.TWs have been directly observed in the basilar papilla of birds and the ears of bush-crickets (Insecta: Orthoptera) and have also been indirectly inferred in the