title: Infrasound responses in the midbrain of the guinea fowl.
abstract: The electrophysiological audiogram of the Guinea fowl has been obtained using auditory evoked potentials from the MLD of unanesthetized birds. In restricted regions of MLD, phase-coupled responses to extreme low-frequency sinusoids (2-10 Hz) could be recorded at moderate intensities. The tonotopy of MLD extends continuously to the infrasound region at the rostrodorsal margin. Single-cell recording of infrasound responses show phase-locked firing of neurons with different phase delays for different cells.
mesh_terms: D000818:Animals; D001306:Auditory Pathways / Q000502:physiology; D001309:Auditory Threshold; D001717:Birds / Q000502:physiology*; D005072:Evoked Potentials, Auditory; D008636:Mesencephalon / Q000502:physiology*; D013045:Species Specificity