Andrew Huberman· PhD
So without going into a lot of detail, interaural time differences are the ways in which if you were to hear something off to your right, like I just snapped my finger just to the right of my right ear, that a signal arrives in my right ear before that's sound signal, those sound waves arrive in my left ear. So there's an interaural between ears, time difference. And there's a brainstem area in which signals from one ear and signals from the other ear converge, and there's literally a math done by your nervous system that says this signal arrived before the other signal. And the difference between those signals is the interaural time difference.