Leadership and tempo perturbation affect coordination in medium-sized groups

Area of Science:

• Social Psychology
• Movement Science
• Group Dynamics

Background:

• Human group behavior, including marching bands and sports, relies on coordinated actions.
• Coordination dynamics research has primarily focused on pairs, leaving a gap in understanding medium-sized groups.
• The role of leadership and external disruptions in group coordination and cohesion is not well understood.

Purpose of the Study:

• To investigate how leadership and unexpected perturbations affect coordination and cohesion in groups.
• To explore the sensorimotor and social bonding aspects of coordination in groups larger than dyads.
• To examine group coordination in a naturalistic setting.

Main Methods:

• Seven-person groups were instructed to synchronize their walking pace with an auditory signal.
• A reliable leader was present, and their movement tempo was unexpectedly altered during the task.
• Coordination with the target tempo and group members, as well as perceptions of cooperativeness, were measured.

Main Results:

• A reliable leader enhanced participants' synchronization with the target tempo.
• Leader-induced tempo changes disrupted coordination with the target tempo but not with other group members.
• The presence of a leader increased participants' perception of being a follower and their sense of group cooperativeness.

Conclusions:

• Leadership plays a significant role in synchronizing group movement with external cues.
• Group coordination dynamics in medium-sized groups are influenced by leadership stability and external perturbations.
• Leadership can enhance social cohesion and feelings of cooperation within a group, extending findings beyond dyadic interactions.