Abstract
Barn owls perform sound localization based on analyses of interaural differences in arrival time and intensity of sound. Two kinds of neural signals representing the interaural time difference (ITD) and the interaural intensity difference (IID) are processed in parallel in anatomically separate pathway. We explain briefly the neural models of pathways of ITD and IID detection which we have already presented [1,2]. We present a neural network model of ICc ls in which the signals representing ITD and IID are first combined with each other. It is shown using our neural models how the neural map, in which ITD and IID are represented along the axes being perpendicular mutually, can be generated in ICc ls by the excitatory inputs from ICc core representing ITD and the inhibitory inputs from bilateral VLVps representing IID. We show that the firing rates of ICc ls neuron are well represented by a suppressive multiplication of ITD and IID inputs. This seems to be the origin of the multiplicative binding found in ICx by Pena and Konishi [3].
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References
Inoue, S., Yoshizawa, T., Kashimori, Y., Kambara, T.: An essential role of random arrangement of coicidence detection neurons in hyper accurate sound location of owl. Neurocomputing 38, 675–682 (2001)
Fujita, K., Huang, S.-Q., Kashimori, Y., Kambara, T.: Neural mechanism of detecting interaural intensity differences in the owl’s auditory brainstem for sound localozation. Neurocomputing (2004) (In press)
Pena, J.L., Konishi, M.: Auditory spatial receptive field created by multiplication. Science 292, 249–252 (2001)
Konishi, M.: Listening with two ears. Scientific American 268, 66–73 (1993)
Takahashi, T.T., Keller, C.H.: Commissural connections mediate inhibition for the computation of interaural level difference in the barn owl. J.comp.Physiol. A 170, 161–169 (1992)
Adolphs, R.: Bilateral inhibition generates neuronal responses tuned to interaural level differences in the auditory brainstem of the barn owl. J. Neurosci 13, 3647–4668 (1993)
Mordans, J., Knudsen, E.I.: Representation of interaural level difference in the VLVp, the first site of binaural comparison in the barn owl’s auditory system. Hearing Res 74, 148–164 (1994)
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© 2004 Springer-Verlag Berlin Heidelberg
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Fujita, K., Huang, S., Kashimori, Y., Kambara, T. (2004). Neural Mechanism of Binding ITD Information with IID One for Generating Brain Map of Sound Localization. In: Pal, N.R., Kasabov, N., Mudi, R.K., Pal, S., Parui, S.K. (eds) Neural Information Processing. ICONIP 2004. Lecture Notes in Computer Science, vol 3316. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30499-9_6
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DOI: https://doi.org/10.1007/978-3-540-30499-9_6
Publisher Name: Springer, Berlin, Heidelberg
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