“…Regarding the hypothesis that the infants would respond positively to the mothers' Positive Social Orientation behaviors and vice versa, it was observed that, in play episode, the infants looked at their mother's face and smiled at the maternal singing behavior, proving partially that hypothesis. Exposure of preterm infants to music can have positive effects on their ability to regulate (Garunkstiene, Buinauskiene, Uloziene, & Markuniene, 2014), as well as strengthening the interaction between mother and infant (Palazzi, Meschini, & Piccinini, 2019). Unlike expected, relationships were observed between infants' Positive Social Orientation behaviors and mothers' Negative Social Orientation behaviors, such as infants looking and smiling at their mothers when their mothers moved away; this may indicate that infants develop strategies for resuming mother's attention.…”