“…Since these early studies, different authors have revisited this research topic. A growing interest in biological synchrony of couples has been seen in recent years (e.g., Helm, Sbarra, & Ferrer, 2012, 2014Liu, Rovine, Cousino Klein, & Almeida, 2013;Papp, Pendry, Simon, & Adam, 2013;Saxbe & Repetti, 2010;Saxbe et al, 2014), also in the context of dialogical family therapy (Karvonen, Kykyri, Kaartinen, Penttonen, & Seikkula, 2016;Seikkula, Karvonen, Kykyri, Kaartinen, & Penttonen, 2015).…”