PMID: 8592301Feb 1, 1996Paper

Spatial and spectral dependence of the auditory periphery in the northern leopard frog

Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
J WangPeter M Narins

Abstract

We investigated directionalities of eardrum vibration and auditory nerve response in anesthetized northern leopard frogs (Rana pipiens pipiens). Simultaneous measures of eardrum velocities and firing rates from 282 auditory nerve fibers were obtained in response to free-field sounds from eight directions in the horizontal plane. Sound pressure at the external surface of the ipsilateral eardrum was kept constant for each presentation direction (+/- 0.5 dB). Significant effects of sound direction on eardrum velocity were shown in 90% of the cases. Maximum or minimum eardrum velocity was observed more often when sounds were presented from the lateral and posterior fields, or from the anterior and contralateral fields, respectively. Firing rates of 38% of the fibers were significantly affected by sound direction and maximum or minimum firing rate was observed more frequently when sounds were delivered from the lateral fields, or from the anterior and contralateral fields, respectively. Directionality patterns of eardrum velocity and nerve firing also vary with sound frequency. Statistically significant correlation between eardrum velocity and nerve fiber firing rate was demonstrated in only 45% of the fibers, suggesting that sound ...Continue Reading

Citations

Oct 14, 2004·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·G M KlumpP M Narins
Dec 29, 2005·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Calvin C K Ho, Peter M Narins
Feb 8, 2014·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Michael S CaldwellMark A Bee
Feb 12, 2008·Conservation Biology : the Journal of the Society for Conservation Biology·Carmel L WitteLaura L Hungerford
Sep 29, 2021·The Journal of Experimental Biology·G CapshawC E Carr

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