When two guitarists play a jazz melody together not only do their instruments play in time, but their brainwaves match up too, according to new research.
This video released by German scientists shows how the brain waves of professional guitarists become more synchronised as they jam, shedding light on how our brains interact in social situations.
The researchers recorded electrical activity in the brain of eight pairs of guitarists.
Similarities between the brain waves of the jamming musicians were seen to increase significantly, first as each pair listened to the beat in preparation for the concert, and then as the performance began.
The results of the experiment appear in the online journal BMC Neuroscience.
Electroencephalography (EEG) recordings are shown above microphone recordings of guitar A and B.