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Workshop on the Auditory Basis of Speech PerceptionKeele University, UK |
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Workshop on the Auditory Basis of Speech PerceptionKeele University, UK |
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The need to interact effectively with a complex world imposes severe processing requirements on the central nervous system, making selective and predictive sensory perception essential. In this paper we consider the importance of active perception and its implications for auditory processing. A model of the early stages of auditory streaming, shown to be in agreement with a number of psychophysical results, is described. The model demonstrates how such streaming might result from interactions between the tonotopic patterns of activity of incoming signals and traces of previous activity which feed back and influence the way in which subsequent signals are processed. In extensions to the topographic streaming model, we explore how directional and memory based influences may be incorporated into a more extensive model of auditory scene analysis, and how the proposed processes might relate to the structure of the auditory system and the requirements of intelligent sensory processing.
Bibliographic reference. McCabe, Susan L. / Denham, Michael J. (1996): "A neurocomputational model of auditory streaming", In ABSP-1996, 208-211.