Coefficient of variation (vertical axis) of the signal related to the representation of stimuli duration in the Experiment 1. Left panel: the Accumulator buffer. Right panel: the Working Memory buffer. Gray lines illustrate experiments with Pacemaker speed P
P=10, and black lines correspond to P
P=20. Three kinds of markers (dot, cross, circle) are used for different S
μ ratios. The key is the same for both plots.