A probabilistic approach for investigating the phenomena of dissonance and consonance in a simple auditory sensory model, composed by two sensory neurons and one interneuron, is presented. We calculated the interneuron’s firing statistics, that is the interspike interval statistics of the spike train at the output of the interneuron, for consonant and dissonant inputs in the presence of additional "noise", representing random signals from other, nearby neurons and from the environment. We find that blurry interspike interval distributions (ISIDs) characterize dissonant accords, while quite regular ISIDs characterize consonant accords. The informational entropy of the non-Markov spike train at the output of the interneuron and its dependence on the frequency ratio of input sinusoidal signals is estimated. We introduce the regularity of spike train and suggested the high or low regularity level of the auditory system’s spike trains as an indicator of feeling of harmony during sound perception or disharmony, respectively.

Spagnolo, B., Ushakov, Y.V., Dubkov, A.A. (2013). Harmony perception and regularity of spike trains in a simple auditory model. In P.L. Garrido, T.J.J. Marro Jaquin (a cura di), PHYSICS, COMPUTATION, AND THE MIND - ADVANCES AND CHALLENGES AT INTERFACES: Proceedings of the 12th Granada Seminar on Computational and Statistical Physics. (pp. 274-289). New York : American Institute of Physics [DOI: 10.1063/1.4776512].

Harmony perception and regularity of spike trains in a simple auditory model

SPAGNOLO, Bernardo;
2013-01-01

Abstract

A probabilistic approach for investigating the phenomena of dissonance and consonance in a simple auditory sensory model, composed by two sensory neurons and one interneuron, is presented. We calculated the interneuron’s firing statistics, that is the interspike interval statistics of the spike train at the output of the interneuron, for consonant and dissonant inputs in the presence of additional "noise", representing random signals from other, nearby neurons and from the environment. We find that blurry interspike interval distributions (ISIDs) characterize dissonant accords, while quite regular ISIDs characterize consonant accords. The informational entropy of the non-Markov spike train at the output of the interneuron and its dependence on the frequency ratio of input sinusoidal signals is estimated. We introduce the regularity of spike train and suggested the high or low regularity level of the auditory system’s spike trains as an indicator of feeling of harmony during sound perception or disharmony, respectively.
2013
Settore FIS/03 - Fisica Della Materia
Spagnolo, B., Ushakov, Y.V., Dubkov, A.A. (2013). Harmony perception and regularity of spike trains in a simple auditory model. In P.L. Garrido, T.J.J. Marro Jaquin (a cura di), PHYSICS, COMPUTATION, AND THE MIND - ADVANCES AND CHALLENGES AT INTERFACES: Proceedings of the 12th Granada Seminar on Computational and Statistical Physics. (pp. 274-289). New York : American Institute of Physics [DOI: 10.1063/1.4776512].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/74697
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