Further observations on the threshold model of latency for auditory neurons.

This paper examines the recent claim of Phillips, that the threshold model of latency is inadequate to account for the changes of latency of auditory cortical neurons in response to tones of different amplitudes and rise times. I argue that Phillips' analysis was based on an incorrect assumption and that he therefore rejected the model for the wrong reasons, though correctly, as the model is in fact inadequate, as demonstrated here and previously. The failure of the model has significant implications for signal processing in the auditory system.