Amplitude envelope correlations measure synchronous cortical oscillations in performing musicians

Annals of the New York Academy of Sciences
Anna ZammCaroline Palmer

Abstract

A major question facing cognitive neuroscience is measurement of interbrain synchrony between individuals performing joint actions. We describe the application of a novel method for measuring musicians' interbrain synchrony: amplitude envelope correlations (AECs). Amplitude envelopes (AEs) reflect energy fluctuations in cortical oscillations over time; AE correlations measure the degree to which two envelope fluctuations are temporally correlated, such as cortical oscillations arising from two individuals performing a joint action. Wireless electroencephalography was recorded from two pianists performing a musical duet; an analysis pipeline is described for computing AEs of cortical oscillations at the duet performance frequency (number of tones produced per second) to test whether these oscillations reflect the temporal dynamics of partners' performances. The pianists' AE correlations were compared with correlations based on a distribution of AEs simulated from white noise signals using the same methods. The AE method was also applied to the temporal characteristics of the pianists' performances, to show that the observed pair's AEs reflect the temporal dynamics of their performance. AE correlations offer a promising approach ...Continue Reading

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Citations

Mar 18, 2020·Frontiers in Human Neuroscience·Artur CzeszumskiPeter König
Sep 26, 2019·Frontiers in Integrative Neuroscience·Viktor Müller, Ulman Lindenberger
Nov 24, 2019·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·C T BrielsA A Gouw
Oct 9, 2020·Social Cognitive and Affective Neuroscience·Anaël AyrollesGuillaume Dumas
Mar 12, 2021·Social Cognitive and Affective Neuroscience·Huashuo LiuDan Zhang
Oct 1, 2021·The Behavioral and Brain Sciences·Jessica A GrahnAnna Zamm
Jan 15, 2022·Cerebral Cortex·Katarzyna GugnowskaDaniela Sammler

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