Abstract
This study investigated the contribution of nonverbal cues to supportive communication in interactions between mothers and young adult children. Current support communication research primarily focuses on verbal messages communicating support or conceptualizes nonverbal communication in narrow ways. Using the concept of interactional sensitivity from attachment theory for direction, a number of hypotheses concerning support provision were proposed in order to develop our understanding in this area. Findings provide insight into the role of nonverbal as well as verbal communication in supportive interaction. Interactional sensitivity—in the form of certain conversational involvement cues (vocal warmth/interest and kinesic/proxemic attentiveness), responses appropriate to the child's needs, and movement synchrony—predicted young adult children's perceptions of mothers’ supportiveness during a conversation about a relationship problem.