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. Author manuscript; available in PMC: 2018 Mar 15.
Published in final edited form as: Physiol Behav. 2017 Jan 13;171:216–227. doi: 10.1016/j.physbeh.2017.01.023

Fig. 1.

Fig. 1

Left: Wanting scale. The dimensions of the cup shown to the participant were 18.3 cm high × upper diameter 4.9 cm lower diameter 3.1 cm. The volume (in ml) was computed by applying the conic formula (3.1417 is pi, A2 is the height of the cup marked by the participant): Volume = 3.1417 × ((3.12) × (A2) + (3.1 × (4.9 − 3.1) × ((A2)2)) / 18.3 + (((4.9 − 3.1)2) × ((A2)3) / (3 × (18.3)2))). Right: Final model of the sipometer.