Research On The Influence Of Aromatic Plants On The Psychology And Physiology Of College Students Based On EEG Analysis

The accelerating pace of life has led to more and more people being in a sub-healthy state of body and emotion.As natural elements that can relieve stress,garden plants have received more attention in recent years,which promotes people’s psychological and physical health and enhances people’s happiness.There’s important meaning.In this study,44 college students were tested to smell the fragrance of aromatic plants.Psychological and physiological data were obtained through questionnaires,mood state scales,and EEG.The data were descriptive statistics,correlation analysis,repeated measurement analysis of variance,Independent sample t-test and one-way analysis of variance were used to study the variation of different odor intensities of the same flower material over time and the variation of different materials of the same fragrance type over time.The main research conclusions are as follows:(1)After researching live lilies with different odor intensities,it is found that in the natural concentration range,the odor intensity of live lilies is significantly positively correlated with the subjective pleasure of the human body.The results of the subjective scale showed that after the subjects sniffed the living lily,their fatigue and panic were significantly relieved;objective data showed that after sniffing the living lily,there was no difference in the psychological and physiological effects of the sniffing duration and odor intensity.There is an interaction between duration and odor intensity.Sniffing live lilies can increase excitability.There are significant differences in the alpha waves of different genders and ages.(2)After studying three materials of the same fragrance type of living gardenia,gardenia perfume and gardenia essential oil,it was found that 64% of the subjects could accurately identify living gardenia,while perfume and essential oil could not be distinguished.That is,living plants have certain uniqueness.The results of the subjective scale showed that after the subjects sniffed the three materials,their fatigue mood was alleviated;objective data showed that after sniffing the three materials,the sniffing duration and the psychological and physiological effects of different materials were different.The materials have an interactive effect.As the sniffing time increases,the alpha wave value shows an increasing trend,that is,it has a relaxing effect on the human body.Comparing the three materials,the living gardenia has the best relaxing effect on the human body,followed by the gardenia essential oil.,Gardenia perfume is the worst;there are significant differences in alpha waves after sniffing for different genders and ages.(3)After comparing the smelling of living lilies and living gardenias,it was found that the results of the subjective scale showed that there was no significant difference between the subjects’ subjective emotions before and after smelling the two kinds of living plants;the objective EEG data showed that the results of smelling Sniffing the living gardenia has a better effect on soothing emotions than smelling the living lily,and there is a difference between not increasing the visual stimulation and increasing the alpha wave of the visual stimulation.(4)The results of this research put forward the following suggestions for the application of aromatic plants in landscape design: pay attention to the accumulation and diffusion of odors when applying aromatic plants,use terrain,wind direction and various spaces enclosed by plants to control odor intensity,and make rational use;Pay attention to the collocation of smell and visual landscape in landscape design to create a space that increases people’s excitement or calming;design multiple work,study,and leisure and entertainment venues outdoors to introduce people into the outdoor environment or introduce natural aromas Indoors,relax the mood by planting aromatic plants outside the window or arranging living aromatic plants indoors;and by creating aromatic flower gardens,Chinese herbal medicine gardens and picking gardens and other specialized gardens for targeted healing of the crowd.