electrooculogram
noun
elec·tro·oc·u·lo·gram
i-ˌlek-trō-ˈä-kyə-lə-ˌgram 
: a record of the difference in electrical charge between the front and back of the eye that is correlated with eyeball movement (as in REM sleep) and obtained by electrodes placed on the skin near the eye
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Because REM sleep is characterized by eye movement, ocular motion can be measured using an electrooculogram (EOG).
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Darren Incorvaia, Discover Magazine, 5 Oct. 2022
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Darren Incorvaia, Discover Magazine, 5 Oct. 2022
Cite this Entry
“Electrooculogram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electrooculogram. Accessed 4 Nov. 2025.
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electrooculogram
noun
elec·tro·oc·u·lo·gram
i-ˌlek-trō-ˈäk-yə-lə-ˌgram
: a record of the standing voltage between the front and back of the eye that is correlated with eyeball movement (as in REM sleep) and obtained by electrodes suitably placed on the skin near the eye
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