## 5 Conclusions  
This paper uses EEG testing techniques and subjective evaluation methods to compare the comfort of people's experience of free-form and regimented landscapes, as well as to quantify and further explore the relationship between landscape characteristics and physiological comfort, leading to the following conclusions:  
(1) From the EEG electrode \(\alpha\) mean values, 12 groups of electrodes showed higher values during the D1 video stimulation of the free-form landscape, and 6 groups showed higher values during the D2 video stimulation of the regulated landscape. Overall, the free-form landscape is more capable of triggering human physiological comfort. Meanwhile, according to related studies, we know that free-form urban park scenes play an important role in people's psychological recovery [27], while viewing straight urban roads and square paved plazas will increase negative emotions [28,29]. Other studies have also shown that landscapes closer to natural forms have stronger stress recovery effects than regular artificial landscapes, and these studies provide an important basis for our results [30,31]. We observed significant variations in the impact of the two types of landscape designs on the comfort levels of different brain regions. Specifically, free-form landscape was found to induce greater physiological comfort in the left temporal lobe, right parietal lobe, and left frontal lobe. On the other hand, regular landscape was associated with higher physiological comfort in the occipital lobe regions and right temporal lobe at T8 electrodes. Both types of landscape designs were able to elicit physiological comfort in the central regions of the brain. The reason for this is due to the different functions of brain regions: the left temporal lobe, right parietal lobe, and left frontal lobe have emotional, sensory, and mental regulation roles, and the free-form landscapes, or more natural landscapes, can be relaxing and have a strong effect on people's emotional regulation [32, 33, 34], where the emotional regulation function of the free-form landscapes stimulates these brain regions effectively. Occipital and right temporal lobe regions are important parts of the brain for visual processing, while the significant role of regular landscape on visual stimuli induced  
Figure 14: Comparison of \(\alpha\) values and subjective factor scores of electrodes in design D1 and D2. the vitality of these regions and showed higher \(\alpha\)-waves on EEG data [35; 36; 37], which is consistent with our findings. (2) The results of the subjective questionnaire evaluation showed that there were significant subjective differences in participants' perceptions of the video stimuli between the two landscapes. From the perspective of subjective questionnaire scores, free-form landscapes were perceived as more natural and hidden, while the sense of order and rhythm of regular landscapes were better perceived by the participants. (3) Using the EEG \(\alpha\)-wave as the basis for comfort evaluation, by analyzing the correlation between the EEG \(\alpha\)-value and subjective evaluation scoring, we obtained that the comfort of the right occipital lobe O2 region is positively proportional to the intensity of rhythm, and the comfort of the left occipital lobe O1 region is inversely proportional to the intensity of rhythm [38]; although the occipital lobe region is highly correlated with visual stimuli and landscapes with strong rhythms can trigger visual stimuli, the effect of this kind of stimuli on the left and right occipital alpha waves may be distinctly different. Comfort in the C3 region of the left temporal lobe was inversely proportional to variability and color, and comfort in the T7 region of the left temporal lobe was positively proportional to the sense of naturalness, which further suggests that freestyle landscapes are more capable of triggering physiological comfort in the C3 versus T7 regions, since freestyle landscapes were given lower scores for variability and color.