A NON-INVASIVE ELECTROPHYSIOLOGICAL STUDY ON THE ENHANCEMENT OF HEARING ABILITY IN FISHES

摘要

Traditionally the study of fish hearing is achieved either by psychophysical method (e.g., behavioral training) or invasive electrophysiological recording (e.g., microphonics, single unit recording). A non-invasive, the auditory brainstem response (ABR) recording method is developed to study fish hearing. With the use of the ABR method and the removal of gas from various gas holding structures, it is proved that the mechanically coupled or directly linked gas holding devices are used by fish to enhanced hearing.