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[求助]谁能解释一下什么是PGO

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落人 发表于 2003-6-15 09:27:00 | 显示全部楼层 |阅读模式
pontine-geniculate-occipital(PGO)(脑桥-外膝体-枕叶)

找不到这个的名词解释

只知道是REM睡眠机制里的概念

有知道的帮帮忙啊。
admin 发表于 2003-6-15 17:31:00 | 显示全部楼层
Pontine-geniculate-occipital (PGO) wave - A synchronized burst of electrical

activity that originates in the pons and like a wave it activates the lateral

geniculate nucleus (first relay of visual information) and then the occipital

lobe, specifically in the visual cortex (which receives and puts together the

visual information that comes from the lat. geniculate nucleus). PGO waves

appear seconds before and during REM sleep.



The abbreviation "GO" stands for pontine, geniculate, occipital. The term derives from the order of

latency of spike appearance in simultaneous recordings from these areas, with the waves appearing first

in the pons, then propagating to the geniculate and then to the occipital cortex.  http://www.npi.ucla.edu/sleepresearch/1183/1183.pdf  



The high levels of REM sleep in early life led to the Ontogenetic hypothesis. Within the uterus there is little of the sensory stimulation that the growing cerebrum needs to develop properly. So REM sleep is seen to be a substitute stimulation, which, to a lesser extent is also periodically necessary for the sleeping brain after birth. The key element of REM sleep providing the brain with stimulation seems to be the spike discharges of the pontine-geniculate-occipital (PGO) areas.



 楼主| 落人 发表于 2003-6-15 18:07:00 | 显示全部楼层
看不懂呢  可以用中文解释一下吗?
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