Figure 1
From: Robust dynamical invariants in sequential neural activity
Examples of sequential activity produced by the pyloric CPG. The traces correspond to simultaneous extracellular recordings of the LVn nerve (upper trace) and intracellular recordings of PD and LP neurons in the intact CPG. Panel (A) An example of the characteristic regular triphasic spiking-bursting activity in this CPG circuit. Large spikes in the LVn trace correspond to the LP neuron. Note that LP spikes occur in antiphase with PD spikes and the respective IPSPs can be observed in the PD neuron trace. PY spikes can be observed in the extracellular recording after the LP and before the PD spikes (red boxes in the upper trace). PD and LP burst durations and hyperpolarization intervals are nearly constant in the recordings. Panel (B) Example of transient irregular spiking-bursting activity in control conditions. Note the irregular hyperpolarizations and variability in LP plateaus as compared to the regular trace shown in regular control conditions. Panel (C) Example of irregular spiking-bursting activity under ethanol (170 \(mM\)).
