TABLE 2.

PRG-to-midline and midline-to-PRG significant offset feature correlations detected in the analysis of 3,067 midline–PRG neuron pairs

Detected peaks and troughs simply interpreted as evidence for a functional connection from the PRG to a midline neuron (left) or from a midline neuron to the PRG (right). Mean DI, half-width, and time-lag from origin (mean ± SD) for PRG-to-midline offset peaks: 4.2 ± 0.8, 10.8 ± 13.1 ms, 35.6 ± 30.4 ms; offset troughs: 3.4 ± 0.6, 17.2 ± 14.4 ms, 40.0 ± 31.8 ms; for midline-to-PRG offset peaks: 4.9 ± 2.2, 21.9 ± 32.6 ms, 37.0 ± 26.6 ms; offset troughs: 3.6 ± 0.9, 10.9 ± 7.6 ms, 23.6 ± 24.2 ms. In this and subsequent tables, P = peak and T = trough. The total number of such pairs evaluated for evidence of correlation is shown in italics immediately below the incidences of peaks and troughs detected for that pairing of neuron types. Dec, decrementing; Aug, augmenting; I, E, and IE or EI, inspiration, expiration, and phase transition; NRM, nonrespiratory modulated.