Neural conduction time and steady-state evoked potentials.
Signal processing in neural networks will inevitably include delays due to the finite conduction velocity of the neurones and their interconnections. Diamond proposed a method for finding these delays in the case of (visual) steady-state responses. Alignment of response features, when represented in a time domain plot, would, allegedly, yield the delay. We show that filter action, by introducing frequency-dependent phase shifts, is bound to distort the time domain plot considerably, thereby aligning the response features in such a way that a wrong value for the delay is found. This makes that analysis method of doubtful significance.
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D005074:Evoked Potentials, Visual; D006706:Homeostasis; D008959:Models, Neurological; D009431:Neural Conduction; D009482:Neurophysiology / Q000379:methods; D011930:Reaction Time; D013997:Time Factors