Fig. 4.

(a) Schematic diagram of an adult stage C.elegans organism showing the locations of the six identified touch receptor neurons. (b) Epifluorescence image of tagRFP labelled MEC-4 protein puncta in a C. elegans TRN. Scale bar is 5 µm. (c) DIC image (grayscale) of a C.elegans organism combined with a maximum intensity projection of a epifluorescence z-stack showing the two posterior gentle touch neurons (green) during a typical indentation with the microforce sensing probe. Scale bar is 12 µm.