Skip to main content
. 2001 Jul 15;534(Pt 2):565–581. doi: 10.1111/j.1469-7793.2001.t01-1-00565.x

Figure 1. Spike-triggered averages with features identifying inspiratory neurones as laryngeal motoneurones and putative premotor neurones.

Figure 1

An offset biphasic feature in an unrectified (unrect) average of recurrent laryngeal nerve (RLN) efferent activity indicates the trigger neurone was a motoneurone (B). An offset peak (primary feature) in a full-wave rectified (rect) average (C) and a flat unrectified average (D) suggests the neurone was excitatory to motoneurones. A, spike-triggered average (STA); offset peak with a lag of 2.0 ms; half-width, 1.0 ms; number of trigger events, 16763. B, STA; offset biphasic feature. C, STA; offset peak with a lag of 3.0 ms; half-width, 4.5 ms; number of trigger events, 41235. D, STA; flat. E, spike-triggered average feature table summarizing primary features in spike-triggered average histograms in the data set. F, summary circuit showing inferred functional connections detected in the data set in Fig. 2. Changes in peak firing rate (↑, increase) and pattern (Aug, augmenting) during cough. c, intermediate-caudal VRG; r, rostral VRG, which contains the Bötzinger and pre-Bötzinger complexes; ELM, expiratory laryngeal motoneurone; ILM, inspiratory laryngeal motoneurone. Continuous lines represent inferred connectivity from the STA. Dotted lines are hypothesized connections.