Hearing Theory Controversies - Abstract
Over the last 5 centuries, a number of theories have been developed trying to explain the mechanisms of hearing. Despite the widespread acceptance of Bekesy’s traveling wave theory, there is still much controversy regarding hearing. The description of the signal path to the receptor is not sufficient. Cochlear fluid hydrodynamics and wave resonance adopted as the pillars of the traveling wave theory do not fulfill their purpose. In the ear, there is a “flow” of the sound wave through the fluid environment.
The new hypothesis presented in this work indicates the possibility of transmitting auditory information via the route leading from the middle ear through the bony casing of the cochlea to the receptors of hair cells. The paper highlights the importance of the rocking movements of the stapes plate in high-frequency transmission. The possibility of resonance of the longitudinal wave in the cochlear fluids with the transverse wave of the basilar membrane was critically analyzed. Some details of the conversion of sound wave energy into molecules responsible for gating mechano-dependent potassium ion channels are presented. The work of the hair cell at the molecular level is briefly discussed. Controversies Related to Bekesy’s traveling wave theory are presented.