“…There are two confounding aspects of this interplay. First, in many oscillatory systems, phase is maintained over a range of frequencies, i.e., intrinsic and synaptic properties have to ensure that absolute timing of responses changes proportionally to the speed of rhythmic circuit activity (Grillner, 2006;Mullins et al, 2011;Zhang et al, 2014;Le Gal et al, 2017;Martinez et al, 2019b). Second, phase can be very similar across individual animals despite substantial variability in the individual ionic and synaptic currents (Bucher et al, 2005a;Marder and Goaillard, 2006;Calabrese et al, 2011;Marder, 2011;Roffman et al, 2012;Golowasch, 2014;Hamood and Marder, 2014;Marder et al, 2014a;Calabrese et al, 2016).…”