After arranging the necessary setup for home-based EEG hyper scanning, prepare the caregiver for the procedure. Then, attach the microphone receiver to its respective camcorder to automatically synchronize the video and audio. Attach the microphone transmitter to the collar of the caregiver's top and to the infant's vest.
After ensuring that the cameras are positioned to capture the LED light signal from the trigger box in the room, start recording on all three camcorders. Initiate the EEG recording on the laptop and the amplifier for both the infant and the caregiver. Using the 2.5 millimeter jack, connect both amplifiers to the trigger box, ensuring a tight connection.
Execute long presses on the push button as a noticeable difference in marker appearance is only evident with long presses. Verify that the LED signal from the trigger box is visible in the recordings of all cameras. Check for simultaneous markers in the ongoing EEG recordings on the laptop.
After that, detach the amplifiers from the trigger box setup. While conducting the experimental tasks, ensure that all experimenters are hidden from the infant's view throughout the experiment to avoid distractions. One experimenter should stay nearby with the recording laptops to intervene if any sensor streaming issues arise.
Stop recording on the camcorders, EEG software, and amplifier. Then, turn off the amplifier and detach it from the cap. Afterward, carefully remove the ECG tapes and electrodes, starting with the caregiver.
If necessary, assist the caregiver in removing the infant's ECG. Then, unfasten the hook and loop ends of the cap. Peel the cap off backward and turn it inside out.
Clean the gel residue from the infant's head with baby wipes before proceeding to remove the caregiver's cap.
