Figure 4.

The effect of preexposure to tastes occurs regardless of the CS acquisition method. Animals were preexposed to W or W, N, and C via the IOC during preexposure sessions. Bottle groups received the conditioned stimulus via both IOC and Bottle while the IOC group received the CS via the IOC alone. (A) A main effect of preexposure to tastes was found between water (W) and taste array (W, N, C) groups regardless of CS acquisition. (B) Aversion strength toward sucrose was stronger in animals who received preexposure to W, N, and C in comparison to animals exposed to water alone regardless of CS acquisition method. X-axis represents aversion indices for each animal (C_{STestConsumed} mL/C_{SConditioningConsumed} mL). Error bars represent SEM. (*) P < 0.05.