Figure 3. Prolonged light exposure induces paralysis/lethality in worms.

Worms were exposed to prolonged light illumination until death and the elapsed time was recorded. To keep the animal exposed to light continuously, we manually moved the stage to follow the animal to keep it in the field of illumination. Under this condition, worms were usually hyperactive at the beginning, but eventually ceased movement and pharyngeal pumping (n = 10). Error bars represent s.e.m.