Mobi system combines virtual reality, brain monitoring technology and Hollywood inspired motion capture technology. It can effectively help neuroscientists to study the difficulty of body movement coordination caused by human brain disorders and why our brain struggles when multitasking at the same time.
At present, Mobi platform is located in the cognitive neurophysiology laboratory of Delmont college, which integrates several high-tech systems, one of which is motion capture technology commonly used in CGI (computer graphics interface) production in film studio. Participants were required to wear black motion capture suits with reflective markers and complete the walking on a treadmill and object manipulation in a room equipped with 16 sub millimeter precision optitrack high-speed motion capture cameras. The reflective marker points on the motion capture clothing constantly change their spatial positions with the movement of the participants, and can reflect the infrared light emitted by 16 optitrack cameras in the laboratory back to all cameras in real time. After receiving the spatial coordinate data of each marker point, the camera transmits the data to the software in real time to form a rigid body and transmit the 6DOF information in real time, 3D virtual models that drive researchers computers.
During the walking process, the participants will project immersive interactive virtual scenes (such as urban street view) on the screen in front of them, which requires participants to lead the road. They can also be asked to perform tasks, make decisions and respond to the content on the screen. During the experiment, the participants were able to monitor the EEG activity in real time by using high density EEG (electroencephalogram) - participants wore metal electrode caps and the small metal plates on the electrode cap were close to the scalp.
When the motion capture data is synchronized with EEG monitoring in real time, researchers can observe which areas of the brain are activated when the participants walk and perform tasks, and study how the brain gives feedback when they move, perform tasks, and perform the above two actions at the same time. Because the brain of autistic patients often has difficulties in processing sensory information from multiple sources (some cases of autism may also have abnormal gait), Mobi can timely and accurately feed back the brain condition of autistic patients to researchers when they show abnormal behavior, which brings a new perspective for neuroscience research. In addition, patients with Alzheimers disease, dementia, and motor concussion often experience limb movement difficulties, so Mobi is also suitable for studying these neurological disorders.
At present, researchers are using Mobi system to record the data of healthy subjects to establish a database of brain waves of normal people. After obtaining the standard data of normal human brain activity waves, researchers can compare it with the brain waves of patients with neurological disorders, give a new medical definition to the symptoms of neurological disorders, and obtain the standard reference for future clinical research. Source: editor in charge of mass news: Chen Tiqiang_ NB6485
At present, researchers are using Mobi system to record the data of healthy subjects to establish a database of brain waves of normal people. After obtaining the standard data of normal human brain activity waves, researchers can compare it with the brain waves of patients with neurological disorders, give a new medical definition to the symptoms of neurological disorders, and obtain the standard reference for future clinical research.