A Neural Oscillator Model of Auditory Selective Attention

Part of Advances in Neural Information Processing Systems 14 (NIPS 2001)

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Stuart Wrigley, Guy Brown


A model of auditory grouping is described in which auditory attention plays a key role. The model is based upon an oscillatory correlation framework, in which neural oscillators representing a single perceptual stream are synchronised, and are desynchronised from oscillators representing other streams. The model suggests a mechanism by which attention can be directed to the high or low tones in a repeating sequence of tones with alternating frequencies. In addition, it simulates the perceptual segregation of a mistuned harmonic from a complex tone.