Figure 1. Descriptive statistical values of Food calories and Aesthetic features. (A) the mean value of food selection rate across conditions; (B) the mean value of response time across conditions. Note: HC denotes high-calorie classical beauty plate; HE denotes high-calorie expressive beauty; LC denotes low-calorie classical beauty; LE denotes low-calorie expressive beauty. Error bars reflect SE, ***p < 0.001, **p < 0.01, *p < 0.05

Figure 2. (A) Posterior distribution of drift rate v; (B) Mean and data distribution of posterior probability estimates of drift rate v under different conditions. Note: error bars reflect SE, *** p < 0.001, ** p < 0.01

Figure 3. Descriptive statistics of ERP waveforms and different conditions on CPP during stimulus lock and response lock. (A) Waveforms of N300 components of occipital cortex electrode clusters during stimulus lock and their corresponding topographic maps, the lower horizontal line of the waveforms represents the N300 time window, and the local zoomed-in N300 time window waveforms are shown in the upper right part of the figure; (B) Waveforms of N400 components of occipital cortex electrode clusters during stimulus lock and their corresponding topographic maps, the horizontal line under the figure represents the N400 time window, and the local zoomed-in N400 time window waveform is shown in the upper right of the figure; (C) Waveforms of the Pz point during response lock, and the horizontal line under the waveform represents the time window of accelerated signal accumulation for different conditions; (D) Mean values of each condition on the CPP. Note: error bars reflect SE, ** p < 0.01