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. Author manuscript; available in PMC: 2019 Jun 26.
Published in final edited form as: HardwareX. 2019 Apr 4;5:e00061. doi: 10.1016/j.ohx.2019.e00061

Figure 14.

Figure 14

The change in volume over a 24-hour period as measured by hydrostatic depth sensors and filtered using the photodetector data to only change volume when the beam is broken i.e. the rat is licking.