Neuroresonance
The neurological alignment of brains, as perceptible from brain scanning, that results from a mutual understanding of feelings and ideas. This understanding is created through good communication and observation of face, gestures, and tone of voice.
Neuroresonance is the physiological basis of empathy.
Notes
The recognition of this phenomenon comes from a Princeton FMRI brain scan study showed that people who communicate better have aligned neural imaging.
Chris Voss draws on it in Never Split the Difference.