## 3 Results
### EEG Analysis Results
#### 3.2.2 Comparison of \(\alpha\) Values of Electrodes in Design D1 and D2  
To examine the connection between the two landscapes and \(\alpha\) values, we examined 32 sets of electrodes from subjects who were stimulated by the two protocols. We used the first 30 s of the experimental video as a baseline for the subjects' \(\alpha\) values. To minimize errors caused by individual differences, we subtracted the baseline values from the actual experimental data. The \(\alpha\) data from the 32 sets of electrodes did not follow a normal distribution, so we later tested them using a non-parametric test. Table 8 presents the average alpha values (excluding the baseline value) and the variability of the 32 groups of electrodes under the influence of the two protocols (see Figure 7) The results indicate that 18 out of the 32 groups of electrodes exhibited significant differences. Specifically, nine groups of electrodes (T8, POz, P4, Oz, O2, O1, M2, FC5, FC1) showed a significance level of \(p<0.000\), while six groups of electrodes (T7, Fz, F3, FC2, M1, C3)  
level of \(p<0.005\). Additionally, three groups of electrodes (Cz, P8, PZ) showed a significance level of \(p<0.05\). Figure 7: Average and difference analysis of electrode alpha waves in each brain region. Note: ***\(-p\leq 0.001\), ***\(-p\leq 0.005\), *\(-p\leq 0.05\). Figure 7 displays the distribution of electrodes in the presence of discrepancies. It is evident that there were 18 sets of electrodes concentrated in specific areas: the occipital lobe (5 electrodes), the left temporal lobe (3 electrodes), the central region (4 electrodes), partially in the right parietal lobe (2 electrodes), the left frontal lobe (1 electrode), the right temporal lobe (1 electrode), and in the bilateral papillary positions of M1 and M2. From the perspective of brain region functions, the occipital lobe is involved in complex visual perception processes, including visual orientation, spatial frequency, and color discrimination. Additionally, the occipital lobe is also an important region for the perception of fatigue [19; 20]. The left temporal lobe is responsible for utilizing visual memory to process sensory inputs and generate higher-level emotional awareness, and it influences emotional regulation [21; 22; 23]. The parietal lobe plays a crucial role in spatial perception and spatial orientation. It aids in the perception and understanding of the position, shape, and size of objects, as well as participating in spatial navigation and orientation abilities [24; 25; 26]. Thus, the electrode distributions with differences in alpha mean values indicate that the two landscapes had different effects on visual perception, color recognition, fatigue, brain mood, and spatial perception, and significantly different effects on visual perception and mood. From the \(\alpha\)-mean values of each electrode in the two schemes, among the 18 groups of electrodes with significant differences in \(\alpha\)-mean values, 12 groups of electrodes had higher \(\alpha\)-values after viewing the free-form landscape D1, and 6 groups of electrodes had higher \(\alpha\)-mean values after viewing the regimented landscape D2. Thus, the landscape properties exhibited in the free-form landscape can cause more electrode \(\alpha\) values to be higher, resulting in more physiological comfort. Figure 8 shows the relationship between the size and distribution range of the mean \(\alpha\) values of the two schemes for the 32 groups of electrodes. It can be seen that the three motors in the left temporal lobe and the two motors in the right parietal lobe had higher \(\alpha\) values during D1 stimulation; the four electrodes in the occipital lobe area had higher \(\alpha\) values during D2 stimulation; the central area FC2 and Cz electrodes had higher mean \(\alpha\) values during the free-form landscape demonstration stimulation; and Ez and FC1 electrodes had higher mean \(\alpha\) values during the regular-form landscape demonstration stimulation.