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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Methods Mol Biol. 2015;1226:175–181. doi: 10.1007/978-1-4939-1619-1_13

Fig. 2.

Fig. 2

Spontaneous photobeam activity system for rearing (vertical photobeam crossings) and ambulatory movement (horizontal photobeam crossings)