Recording videos of participants during EEG data collection is often helpful for informing both pre-processing and interpretation of the resulting EEG signals. This is particularly useful for applications in which participants are intended to be mostly stationary (e.g., during sleep) or mobile (e.g., during extreme EEG). Video recordings are also common for researchers who work with babies and children and those who are interested in social interaction studies. Many researchers may choose to set up a video camera and record participants independently from the EEG data, with the goal of synchronizing the data offline. Because video cameras use their own clock and timing, reliable synchronization of video with EEG data is a complex task. Therefore, we aim to streamline this process by offering a compact, high-resolution video recorder kit with a software integration plugin that allows researchers to record video concurrently with EEG data. This solution allows maximum synchronization between video and EEG data with an active drift correction mechanism that works even over long duration recordings. We also offer an optional video module for BrainVision Analyzer 2 so that researchers can see the video recording advance automatically as they scroll through their EEG data.
