Figure 6. Caenorhabditis elegans (C. elegans) stores a memory of previous O2 experience primarily in the neural circuit shown. Arrows denote chemical synapses, while bars denote gap junctions. The strength and type (excitatory or inhibitory) of the synapses are not indicated. Sensory neurons are indicated with blue rectangles, interneurons with red, motor neurons with a green diamond, and motor output with a light-blue hexagon.

Adapted from Metaxakis, Petratou, and Tavernarakis (2018).