Odorant-induced membrane potential depolarization of AIY interneuron in Caenorhabditis elegans

► Voltage-Sensitive Fluorescent Protein (VSFP) 2.42 was used in C. elegans. ► The membrane potential and Ca2+ dynamics in AIY differ in its subcellular regions. ► VSFP2.42 is the useful tool to dissect the neural processing in C. elegans.