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Processes involved in tempo perception: a CNV analysis.

Micha Pfeuty·Richard Ragot·Viviane Pouthas
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Abstract

The purpose of this research was to study the mechanisms underlying tempo perception, by looking at their electrophysiological brain correlates. The subjects' task consisted of comparing the tempos of two isochronous tone sequences made up of either three (condition 13) or six (condition 16) 600-ms intervals. Contingent negative variation (CNV), known to be linked to the judgment of a single interval, kept increasing in amplitude for three intervals during tempo encoding, thereby providing evidence of the occurrence of CNVs also for several intervals in succession. This CNV increase could reflect the use of interval-based processes in the building of the interval memory trace. During the comparison phase, a CNV decrease was observed in condition 16, suggesting that subjects did not build a new memory trace, but used beat-based processes to check whether the beats of the new tempo occurred at the times they anticipated.

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Acoustic StimulationAdolescentAdultContingent Negative VariationElectroencephalographyFemaleHumansIndividualityMaleSignal Detection, PsychologicalTime PerceptionClinical TrialJournal Article

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Micha Pfeuty, Richard Ragot, Viviane Pouthas. 2003. Processes involved in tempo perception: a CNV analysis.. https://doi.org/10.1111/1469-8986.00008

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