The authors use optogenetics to selectively activate single glomeruli in behaving mice. They find that mice can perceive the stimulation of a single glomerulus, even on an intense odor background. Different input intensities and the timing of input relative to sniffing can also be discriminated. This suggests that each glomerulus can transmit odor information using identity, intensity and temporal coding cues.
- Matthew Smear
- Admir Resulaj
- Dmitry Rinberg
