Table 1.

Example of student-initiated behavioral analysis

	Group A: No ChR2		Group B: ChR2 Expression
	Trial 1	Trial 2	Trial 1	Trial 2
Control condition: no blue light stimulation
Number of peristaltic waves	21	24	23	23
Total distance traveled, no. of squares	8	12	12	14
Experimental condition: 1-s blue light pulses
Number of peristaltic waves	19	21	0	0
Total distance traveled, no. of squares	12	13	0	0

Students counted the number of peristaltic waves and distance traveled during 30-s trials in control [no channelrhodopsin2 (ChR2) expression, n = 2] and experimental (ChR2 expressed in glutamatergic neurons, n = 2) animals. In both groups, locomotion was measured in ambient light and in the presence of rhythmic (1-s pulses, 0.5 Hz) blue light pulses.