Planarian motility is used to gauge the stimulant and withdrawal properties of natural products when compared to the movement of the animals in spring water alone.
Voura, E. B., Pulquerio, C. H., Fong, R. A. M. V., Imani, Z., Rojas, P. J., Pratt, A. M., Shantel, N. M., Livengood, E. J. A Planarian Motility Assay to Gauge the Biomodulating Properties of Natural Products. J. Vis. Exp. (159), e61070, doi:10.3791/61070 (2020).