| Summary: | 碩士 === 國立宜蘭大學 === 生物技術研究所碩士班 === 97 === The main purpose of this thesis is to study the relationships between the autonomic activity and the spectrum of the heart rate variability (HRV) of mice. By implanting the wire electrodes on the muscles of trapezius and gastrocnemius, we could record the signals not only ECG but the EMG corresponded to respiratory and movement, and thus, we could screen the states of “really resting” of mice. Under the autonomic blockers operation, the frequency ranges corresponding to sympathetic and parasympathetic activity in the states of really resting and freely moving were evaluated. The results suggested the HRV of mice could not be an index of sympathetic activity, but the spectral power in the frequency range of the 0.1~1 Hz would be a possible index of parasympathetic activity.
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