Perturbative M-Sequences for Auditory Systems Identification

Part of Advances in Neural Information Processing Systems 10 (NIPS 1997)

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Mark Kvale, Christoph Schreiner


In this paper we present a new method for studying auditory sys(cid:173) tems based on m-sequences. The method allows us to perturba(cid:173) tively study the linear response of the system in the presence of various other stimuli, such as speech or sinusoidal modulations. This allows one to construct linear kernels (receptive fields) at the same time that other stimuli are being presented. Using the method we calculate the modulation transfer function of single units in the inferior colli cui us of the cat at different operating points and discuss nonlinearities in the response.