A deoxyglucose study on auditory responses in the bat Rhinolophus rouxi.
Responses in the auditory system of the echolocating bat Rhinolophus rouxi were mapped with [3H]deoxyglucose (DG) autoradiography. After unilateral stimulation with the constant frequency component of the individual bat's echolocation call, stimulus-related DG uptake occurred contralaterally in the dorsolateral and the ventromedial parts of the inferior colliculus, in the ventral medial geniculate body and in the contralateral neocortex. Unilateral 50 kHz-stimulation gave rise to a weakly activated lamina in the dorsolateral contralateral inferior colliculus. The distribution of frequency-evoked DG uptake within the inferior colliculus agrees with electrophysiological findings on an acoustic fovea in the auditory pathway of echolocating bats.
D000161:Acoustic Stimulation; D000818:Animals; D001307:Auditory Perception / Q000502:physiology*; D001345:Autoradiography; D002685:Chiroptera / Q000502:physiology*; D003837:Deoxy Sugars; D003847:Deoxyglucose; D005072:Evoked Potentials, Auditory; D007245:Inferior Colliculi / Q000166:cytology / Q000502:physiology*; D008297:Male; D009474:Neurons / Q000502:physiology; D013788:Thalamus / Q000502:physiology
D003837:Deoxy Sugars; D003847:Deoxyglucose