In Drosophila antenna, an unusual non-synaptic form of lateral inhibition occurs between subtypes of compartmentalized olfactory receptor neurons (ORNs). Here, authors show that direct electrical (ephaptic) interactions mediate lateral inhibition between ORNs, with physically larger ORNs dominating ephaptic interactions.
- Ye Zhang
- Tin Ki Tsang
- Chih-Ying Su