Synchronization of human network

The synchronization of human networks is essential for our civilization and understanding the motivations, behavior, and basic parameters which govern the dynamics of human networks are important for many aspects of our lives. We studied complex human networks in different configurations with full control over the network connectivity, the coupling strength of each connection and the delay between coupled individuals. Our system is based on coupling violin players in different configurations and measuring the synchronization of their phase, period, frequency and volume. In our system, each player is connecting it's violin output to our computer system and has headphones for the input. We found that humans tend to find a non-trivial solution for frustration situations and spontaneously change the connectivity of the network in order to reach a stable solution. We also found that out-of-phase synchronized state is highly stable and usually is preferable by the entire network. Our results are important for understanding the dynamics of human networks in different conditions and are the first experiments in which human networks are investigated with full control over the network parameters.