Bioelectronics-mechanical Signals Analysis Scheme for CHAN DING Evaluation

[[abstract]]Meditation is an interesting issue about body and mind health, such as pressure adjustment, emotions management, delaying old age, and blood pressure control. The main purpose of meditation practice is how to enter “Ding” (deepest serenity). The patriarch of Buddha Chan mentions three principles of entering “Ding”: sitting stably, relaxing, and focusing. Once a meditation practitioner reaches these principles at the same time, he/she will enter “Ding.” Therefore, the thesis will introduce and discuss the experiments of detecting body stability by tri-accelerometer, body and mind relaxing by Electrocardiography (ECG), and focusing by eye-blinking signal to testify the principles of entering “Ding.” First experiment is detecting body stability and relaxing. There are 26 undergraduate and graduate students joining it. The experiment group includes 13 people and their average age is 24.4. The control group includes 13 people and their average age is 19.7. During their 30 minutes meditation practice, we take the values in their frequencies of body shaking and heart rate variability (HRV) as the parameter to evaluate the body stability and relaxing. The result suggests that the average and the maximum body shaking values obviously differ from two groups during their 30 minutes practice and even differing per 10 minutes. The shaking values of the experiment group will be lower than the control one. It means that the latter will have higher shaking values than the former as time goes longer. Besides, the HRV parameter of the experiment group and the control group seem not to be obviously different per 5 minutes. LF between two groups obviously meets the difference (p<0.14) but HF does not. Second experiment is detecting focusing. There are 71 undergraduate and graduate students joining for 36 people of the experiment group, average age is 21.6; 35 people of the control group, average age is 19.4. We divide into three stages and each for 5 minutes in this experiment. The students will focus on the specific pictures and their eye-blinking times will be counted during the experiment. We take the eye-blinking times as the parameter of focusing. The result suggests that the eye-blinking times from the experiment group are all less than the control one in each stage (p