| ZHAO DEMING,LIU ZEREN,SHEN TONGMEI,MEI XIUHUA,SHI ZHONGYUAN. 1987. CHANGES ON EEG DURING SIMULATED N2-O2 SATURATION DIVING. Acta Oceanologica Sinica, (3):452－460 |
| CHANGES ON EEG DURING SIMULATED N2-O2 SATURATION DIVING |
| CHANGES ON EEG DURING SIMULATED N2-O2 SATURATION DIVING |
| Received:December 16, 1980 Revised:May 10, 1983 |
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| Abstract: |
| During N2-O2 simulated saturation at a depih of 36.5 m the frequency, amplitude and index of a waves decreased and the activities of β and θ wave increased on the EEGs at rest. After the pressure was decompressed to normal, they could recover to the predive level. During the air excursion diving at depths of 60 and 70 m, the paramenters of EEG approximated to those of N2-O2 exposure. But at that time of the air excursion diving at a depth of 75 m they appeared the maximum. This showed that the changes related to the nitrogen partial pressure. There was an increase in slow waves during the simulated N2-O2 saturation. The activities of slow wave decreased on the EEGs in case of hyperventilation. The photic scimulation to the eyes caused the slow wave to disappear, and a rhythm could recover temporarily. When the photic stimulation was over the slow rhythm reappeared on the EEG. All the changes in EEG indicated that the encephalon function of the human body showed a gradual adaptation process during the exposure to N2-O2 at a depth of 36.5 m for 26 days. |
| 中文摘要: |
| During N2-O2 simulated saturation at a depih of 36.5 m the frequency, amplitude and index of a waves decreased and the activities of β and θ wave increased on the EEGs at rest. After the pressure was decompressed to normal, they could recover to the predive level. During the air excursion diving at depths of 60 and 70 m, the paramenters of EEG approximated to those of N2-O2 exposure. But at that time of the air excursion diving at a depth of 75 m they appeared the maximum. This showed that the changes related to the nitrogen partial pressure. There was an increase in slow waves during the simulated N2-O2 saturation. The activities of slow wave decreased on the EEGs in case of hyperventilation. The photic scimulation to the eyes caused the slow wave to disappear, and a rhythm could recover temporarily. When the photic stimulation was over the slow rhythm reappeared on the EEG. All the changes in EEG indicated that the encephalon function of the human body showed a gradual adaptation process during the exposure to N2-O2 at a depth of 36.5 m for 26 days. |
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