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Preferred auditory temporal processing regimes and auditory-motor synchronization

MPS-Authors

Kern,  Pius
Department of Neuroscience, Max Planck Institute for Empirical Aesthetics, Max Planck Society;

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Poeppel,  David
Department of Neuroscience, Max Planck Institute for Empirical Aesthetics, Max Planck Society;
Department of Psychology, New York University;
Max Planck NYU Center for Language, Music, and Emotion;

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Rimmele,  Johanna Maria
Department of Neuroscience, Max Planck Institute for Empirical Aesthetics, Max Planck Society;
Max Planck NYU Center for Language, Music, and Emotion;

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neu-21.poe-01-preferred.pdf
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Citation

Kern, P., Assaneo, F., Endres, D., Poeppel, D., & Rimmele, J. M. (2021). Preferred auditory temporal processing regimes and auditory-motor synchronization. Psychonomic Bulletin & Review. doi:10.3758/s13423-021-01933-w.


Cite as: http://hdl.handle.net/21.11116/0000-0008-A898-F
Abstract
Decoding the rich temporal dynamics of complex sounds such as speech is constrained by the underlying neuronal-processing mechanisms. Oscillatory theories suggest the existence of one optimal perceptual performance regime at auditory stimulation rates in the delta to theta range (< 10 Hz), but reduced performance in the alpha range (10–14 Hz) is controversial. Additionally, the widely discussed motor system contribution to timing remains unclear. We measured rate discrimination thresholds between 4 and 15 Hz, and auditory-motor coupling strength was estimated through a behavioral auditory-motor synchronization task. In a Bayesian model comparison, high auditory-motor synchronizers showed a larger range of constant optimal temporal judgments than low synchronizers, with performance decreasing in the alpha range. This evidence for optimal processing in the theta range is consistent with preferred oscillatory regimes in auditory cortex that compartmentalize stimulus encoding and processing. The findings suggest, remarkably, that increased auditory-motor synchronization might extend such an optimal range towards faster rates.