Records eye movement and determines when the patient is in REM sleep. Helps to determine sleep latency, total sleep time, time spent in each sleep stage, number of arousals during sleep.
Electrooculography
Electrooculography
Some 4-letter words that start with O:oaksoakyoarsoastoathoatsobeyoboeoddsodesodoroffsogleogreoilsoilyoinkokayokraoleoolioomenomitonesonlyontoonusonyxoozeopahopalopenoptsopusoralorcaorgyoticouchoursoustovalovenoverovumowedowerowesowlsownsoxenOars, oath, obey, oboe, odds, oily, oink, okay, omen, omit, once, only, onto, open and ouch are 4 letter words. Additional words include ours, outs, oval, oven, over, owed, owls, owns and oxen.4 letter words O: * oath * over * oven * only * onyx * ooze * oven * omit * odor * oboe * ovum * open * odds * omen * oily * ocra * opal * opus * oral * oryx * ouch * ooze * owes * ownsoval, open, owls, olay, oats, onlyonus* opus * oven * over * oval * oxen * only * orgy * omit * oath * ogle * oars * odds * obey * oboe * onto * odor * ogre * oily * okra * omen * open * oral * ouch * ours * oustopen.order.option,otherFour letter words beginning with O are: ogreokraoleoomenonceonusopalopenorcaouchoustovalovenoverovumA four letter word starting with an "o" is: OVERopal open obey obit oboe odor odds okra olio omit omen only onto onyx onus ooze oozy opus oral orca ouch oryx oust ovum oxen over oval ovenoaksoarsoastoatsobisoddsodeaodesodoroffsogreoilsoinkokayoleoolioomenonceonlyontoonusonyxoopsoozeopahopalopenoptsopusoralorbsorcaorcsoresortsoticouchoursoustoutsovalovenoverovumowesowedowerowlsownsoxenoxer