A representation of horizontal sound location in the inferior colliculus of the mustache bat (Pteronotus p. parnellii).
Binaurally sensitive E-I neurons in the inferior colliculus are topographically organized with respect to their sensitivity to interaural intensity disparities (IIDs). IID sensitivity dictates the azimuthal position of the medial border of a neuron's spatial receptive field. A sound moving along the azimuth will result in a change in the percentage of excited neurons as receptive field borders are crossed. Percent excitation within this population may provide a neural code for horizontal sound location.
D000818:Animals; D002685:Chiroptera / Q000033:anatomy & histology* / Q000502:physiology; D004455:Echolocation / Q000502:physiology*; D007245:Inferior Colliculi / Q000033:anatomy & histology* / Q000502:physiology; D009474:Neurons / Q000166:cytology; D009949:Orientation / Q000502:physiology*