Fig. 4.
An example of the much reduced delayed activity, with large persistent gNa but less afferent stimulation (as compared with the stimulation used in Fig. 3). The mean interval between LOT spikes was 500 ms, compared with 400 ms in Fig. 3. In the present case, only 17 (of 500) multipolar neurons generate bursts. Initial L2pyr activity is reduced, and intense delayed firing does not occur. Such a pattern is proposed to correspond to an odor that is detectable but does not lead to conscious perception. SI Appendix, Fig. 4 shows further examples of varying the LOT mean interval.