Procedure 3: Electrooculography

An electro-oculogram, or EOG, records eye movement through the use of electrodes placed on the skin near the eyes.  This recording is facilitated by a voltage difference between the front, the cornea, and the back, the retina, of the eye.  EOG is affected by eye movement and light intensity. Therefore, in this experiment, if light intensity is held constant, we can determine how often someone is distracted during a lecture with the assumption that attentiveness is associated with the subject looking at the computer screen. Electrooculography setup will be followed according to LabChart Student Protocol for “Electrooculography” from sections “Equipment Setup and Electrode Attachment” to “Exercise 1: EOG Artifacts”. Once those sections are complete, the participant's gaze will be calibrated and the control and lecture videos will be shown in the appropriate order.