Reading EOG

What is the primary function of an electrooculogram (EOG)?

• To measure brain activity

• To record eye movements

• To assess heart rate

• To evaluate muscle contractions

Which part of the eye is primarily responsible for generating the electrical signals measured by an EOG?

• Cornea

• Retina

• Lens

• Iris

In an EOG, what does the term 'baseline drift' refer to?

• A sudden spike in signal

• A gradual change in the baseline level of the signal

• A consistent signal pattern

• A decrease in signal amplitude

Which of the following is a common application of EOG in scientific research?

• Studying sleep patterns

• Analyzing blood pressure

• Measuring lung capacity

• Testing reflex actions

What type of signal is primarily recorded by an EOG?

• Acoustic

• Optical

• Electrical

• Magnetic

Tags

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How does an EOG help in diagnosing eye disorders?

• By providing images of the eye

• By measuring the electrical activity of eye movements

• By assessing the color vision

• By testing the eye's response to light

Which of the following best describes the EOG signal when the eyes move to the right?

• The signal increases

• The signal decreases

• The signal remains constant

• The signal fluctuates randomly

What is the typical frequency range of an EOG signal?

• 0.1 to 10 Hz

• 10 to 100 Hz

• 100 to 1000 Hz

• 1000 to 10000 Hz

Tags

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In an EOG, what does the term 'saccade' refer to?

• A slow eye movement

• A rapid eye movement

• A stationary eye position

• A blinking motion

Which electrode placement is commonly used in EOG recordings?

• On the forehead

• Above and below the eye

• On the chest

• On the wrist