Fig. 5: Odor responses of local neurons (LNs).

a Representative example of odor responses from six LNs and eight odors. Each panel shows a 5-s recording trace along and above it the raster of spikes from seven trials. Gray-shaded region indicates the 1-s odor stimulation period. b Color-coded change in firing rate (spikes/s) of 34 LNs in response to 14 monomolecular odors (some tested at multiple concentrations) and 2 solvents (mineral oil and water). LNs are arranged by morphological sub-classes. A gray value indicates that the odor was not tested in the LN. c The fraction of odors that elicited a response in each LN. The number on the bar indicates the number of odors tested for that LN. d Left: Five trials of recording from an LN with 1-s stimulation of dimethyl trisulfide .01 (shaded region). The LN showed a spike soon after the odor onset in only two of the five trials, but showed an excitatory post-synaptic potential (arrowheads) around the same time in the remaining three trials. Right: Another LN showing similar behavior with 1-s stimulation of cyclopentanone .1. Scale bars, 20 mV. Source data for (b, c) are provided as a Source Data file.