Figure 2
From: Using contact tracing from interlocking diaries to map mood contagion along network chains
Schematic plot of mood states reported by a triplet of participants A, B and C, in which B and C made a contact at time \({t}_{0}\) before B and A contacted each other at time \({t}_{1}\) within two days. The mood states before and after the contact at time \({t}_{1}\) of participant A are denoted by \({A}_{{t}_{1}}^{b}\) and \({A}_{{t}_{1}}^{a}\), respectively. The possible mood changes of the participants, either due to a social interaction or just because time passed, are presented by indicator functions as they are marked above solid arrows. The dotted arrows indicate the influence of the contact persons.
