Study population 

Procedure 1: Skin Conductance (GSSR)

Skin conductance setup was followed according to LabChart Student Protocol for “Psychophysiology” from sections “Equipment Setup and Equipment Calibration” to “Exercise 1: Skin conductance and the startle response” Only step 1 from Exercise 1: Skin conductance and the startle response were followed. Readings were taken throughout the six-minute video-watching period. 

Procedure 2: Electrooculography (EOG)

 Electrooculography setup was followed according to LabChart Student Protocol for “Electrooculography” from sections “Equipment Setup and Electrode Attachment” to “Exercise 1: EOG Artifacts”. Once those sections were complete, the participant's gaze was calibrated and the control and lecture videos were shown in the appropriate order \cite{service}. In order to obtain the data, the subject sat in a chair 18 inches from the screen. The recording was started and the volunteer shifted their gaze from one side of the computer screen to the other multiple times and stopped in the middle of the screen.  Once completed, the recording was stopped.  The portion corresponding to the volunteer's gaze left and right was selected. The amplitude scale was adjusted according to the subject's gaze assuming the center was 0%. Data varying -50% or lower and 50% or higher were considered off-screen. Once this was set up, the student watched the control video. This was repeated with each lecture type. 

Procedure 3: Skin Conductance (GSR)

Skin conductance setup and calibration were followed according to LabChart Student Protocol for "Psychophysiology" from sections "Setup and Equipment Calibration" to "Examining the Startle Response".  Once those steps were completed, the electrodes were attached to the subject's right first and third finger.  The control and lecture videos were shown in the appropriate order.  The recording was started and as the volunteer watched each video, GSR was continuously recorded throughout.  Once, completed, the recording was stopped.

Procedure 4: Heart Rate Variability (HRV)

    A finger pulse transducer was utilized to collect the heart rate from the participant. Setup for this component followed the LabChart Student Protocol for "ECG & Peripheral Circulation" in section "Equipment Setup and Electrode Attachment". The finger pulse transducer collected data throughout the entirety of the videos. 
    To analyze the information gathered from the finger pulse transducer, the data was uploaded into Kubios __. (ADD MORE EXACT INFO) The program automatically calculated the components of HRV. For this study, the percent power of the low frequency was utilized to quantify the stimulation of the sympathetic nervous system. The LF value was taken for the first minute of the video and the last minute to compare the change in sympathetic stimulation. This value was graphed in multiple comparisons to show the difference in sympathetic nervous system stimulation during the t. Two-tailed t-tests were performed to identify significance in comparing groups.