Phase delay scatters narrowly while signal-front delay scatters widely in the nucleus laminaris

Evidence

In the penetration through the dorsoventral dimension of 5.2 kHz NL shown in Fig. 2b and 2c , recordings between 205–270 μm depths yielded three contralateral units with similar phase, but a latency difference of 4π (Fig. 2c , black arrow). The first two recordings had latencies of 3.33 and 3.32 ms, the third 2.91 ms. Thus, the recording with the shorter latency occurred almost 4π or 0.38 ms earlier than the first two, given a stimulus period of 192 μs (3.33 ms ‑2 * 0.192 ms = 2.94 ms). In other words, the phase delay of these peaks exhibited a narrow scatter, while the signal-front delay showed a large scatter, as had also been observed for the neurophonic (Wagner et al. 2005 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 2863

Categorization

  • XREF: Connects to how coincidence-detector models distinguish phase locking from signal-front latency — relevant to interaural time difference computation in both avian and mammalian brainstems.