how does detrended fluctuation analysis work?

sound direction can be inferred from temporal differences of sound arrival at each ear. Jeffress model accomplishes this by mapping time into space with delay lines: spatially arranged units are activated depending on when inputs from both ears arrive simultaneously at the unit. pic.twitter.com/rgfHUowHH5

tracking phase with a phase-locked loop: phase of a signal is compared to a reference oscillation. depending on the low-pass filtered phase difference, the reference frequency is adjusted. filter properties determine whether phase can be tracked after sudden frequency jumps. pic.twitter.com/uAqjgTmyQZ