Fig. 5. ceh-2(ch4) animals display locomotion behaviors that require functional NSM neurons. Locomotion rates on agar plates of wild-type (black columns) or ceh-2(ch4) animals (white columns) were recorded in the presence (+) or absence (-) of food, with or without prior food deprivation for 30 minutes (starved/satiated) on plates containing either no fluoxetine or 75 µM fluoxetine (+). Wild type, black; ceh-2(ch4), white. Error bars indicate s.e.m.