想像幾何旋轉動作與數學心算之腦電波分析
| Autor: | 廖宇璁 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 The mechanism of how the brain functions and processes the data has always been the major research concern in both scientific and medical fields. This thesis presents the spatial energy distribution characteristics when the brain doing mathematical cognitive behaviors via the application of FFT and MSE. And the results of both analyses had pointed out that frontal lobe and parietal lobe of the brain are the major stimulating areas for mathematical cognitive behaviors, while the occipital lobe holds comparatively less obvious energy characteristics. Meanwhile, among the four basic operations of arithmetic, subtraction and division put more loadings to our brain, compared to addition and multiplication. This research also probes into the spatial energy distribution characteristics for 3D rotating concepts that we applied while doing math calculations, such as building construction programs and vector quantity calculations. We have discovered a highly similarity as doing arithmetic. There are both more energetic performances on the frontal lobe of the brain. We also use LDA and NNR, to recognize the EEGs while imagining clockwise rotations and anticlockwise ones. The outcomes show that the combination of FZ electrode and FCZ electrode has the best recognition rate, an average of 80.7% among our experimental subjects. Though the rate doesn’t suggest a higher recognizablity than picturing the limb activities, it proves that imagining geometric rotation surely is a valid alternative for imagining recognition. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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