Figure 3
From: The sensory feedback mechanisms enabling couples to walk synchronously: An initial investigation

Frequency of in-phase synchronized walking (synchrony score>1.0) as a function of the specific type of feedback. In the tactile feedback condition (handholding without visual or auditory feedback), 50% of the couples walked in synchrony in-phase. * Indicates significant difference from chance, (i.e., > 10% in good synchrony, p < 0.001).