Final answer:
An electrooculogram (EOG) is a technique used to record the electrical activity of the eyes. It measures eye movements and is used in sleep and ophthalmology studies.
Step-by-step explanation:
An electrooculogram (EOG) is a technique used to record the electrical activity of the eyes. It measures the changes in the electric potential that occur when the eyes move. By placing electrodes around the eyes, the EOG can detect eye movements, such as rapid eye movement (REM) during sleep or voluntary movements during wakefulness.
The EOG is often used in sleep and ophthalmology studies to evaluate eye movements and diagnose various eye disorders, such as nystagmus and sleep-related eye movement disorders. It is also used in research to study eye movements and their relationship to cognitive processes.
Overall, the electrooculogram (EOG) provides valuable information about the electrical activity of the eyes and is a useful tool in understanding eye movements and detecting eye disorders.