The files contain an example of magnetoencephalographic, video, and audio data from an epilepsy patient recorded with the Helsinki VideoMEG Project (https://github.com/andreyzhd/VideoMEG) system. The patient's seizures manifested themselves as a loss of muscle tone in the right arm. Therefore, seizures could not be observed in the normal MEG setup where the patient is either seated or lying with the arms supported. To facilitate seizure detection, the patient was instructed to keep the hands raised during the recording. However, the patient was able to maintain this posture only for short periods, and had his arms resting on chair supports during most of the recording. For more details, see patient 6 in http://dx.doi.org/10.1016/j.eplepsyres.2013.02.017