Fig. 4.

Accuracy of ICA spike sorting of a Tritonia swim motor program. Ai: pre-ICA. The spiking activity of 12 photodiodes during a swim motor program imaged in the dorsal pedal ganglion elicited by a stimulus to pedal nerve 3 (10 V, 5 ms pulses, 10 Hz, 1 s; arrow). Aii: intracellular recordings from 2 adjacent neurons during the swim motor program. Aiii: 2 of the neuronal independent components returned by ICA corresponded exactly to the 2 intracellular traces. Bi: expanded view of the top intracellular recording trace and its corresponding independent component (see boxes in Aii and Aiii). Bii: expanded view of the bottom intracellular recording trace and its corresponding independent component (see boxes in Aii and Aiii).