Fig. 3: Electrophysiological classification of the antennal lobe (AL) neurons.
From: Combinatorial encoding of odors in the mosquito antennal lobe
a A representative recording trace (3.5 s long) of an AL neuron. Red circles, detected spikes; blue arrowheads, isolated spikes (with no other spikes in ±200 ms); y axis scale bar, 10 mV; x axis scale bar, 500 ms. b Illustration of electrophysiological features extracted from the isolated spike. c–f LNs (n = 42) and PNs (n = 170) differed significantly in their values for the four electrophysiological features. P values from two-sided rank-sum tests are displayed. Black lines: means, error bars: s.e.m. g Correlations in the electrophysiological features between pairs of all AL cells, arranged according to the morphological class. h Correlation values were on average positive for PN-PN (n = 14,365) and LN-LN (n = 861) pairs, and negative for PN-LN (n = 7140) pairs. Red lines: means, error bars: s.e.m. i Unsupervised hierarchical clustering of AL neurons using the four electrophysiological features yields two broad classes corresponding to PNs and LNs with high accuracy; the actual identity of each neuron is indicated at the bottom in green (PN) or magenta (LN). Source data for (c–h) are provided as a Source Data file.
