“…More specifically, previous experimental work in humans have demonstrated that acute physical (Roberts, Klatzkin, & Mechlin, 2015) and social stress (Heinrichs, Baumgartner, Kirschbaum, & Ehlert, 2003) result in significantly smaller elevations in heart rate, blood pressure, and cortisol in humans socially supported by another partner, compared to individuals who undergo stress alone. More recently, the mere presence of another partner was shown to reduce psychophysiological responses to aversive sounds, compared to an alone condition (Qi et al, 2020). The social buffering research has however almost exclusively focused on the social regulation of stress responses (Hostinar, Sullivan, & Gunnar, 2014) and little work has focused on how social information modulates learned threat memories or how social safety information is learned (but see also Ferreira et al, 2019).…”