ABSTRACT
Apit Hemakom,a,d Katarzyna Powezka,b Valentin Goverdovsky,a
Cooperative human activities require high degrees of mental and
physical synchronisation among multiple participants, to the extent
that synchrony underpins performance level in activities such
as choir singing, playing music in an ensemble, rowing, flying
an airplane with a co-pilot, or performing surgical procedures.
When it comes to quantifying the degree of synchronisation
among participants, synchrony in physiological responses has been
reported in respiration and heart rate variability (HRV) among the
choir members (Hemakom et al., 2016; Vickhoff et al., 2013).
