Eye tracking white sclera (limbus tracking). It presents another challenge for vertical eye movements due to obstruction of eyelids. Eye-tracking setups vary greatly: some are head-mounted, some require the head to be stable (for example, with a chin rest), and some function remotely and automatically track the head during motion. Most use a sampling rate of at least 30 Hz. Although 50/60 Hz is more common, today many video-based eye trackers run at 240, 350 or even 1000/1250 Hz, speeds needed in order to capture fixational eye movements or correctly measure saccade dynamics. Eye movements are typically divided into fixations and saccades
Shiren the Wanderer 4: The Eye of God and the Devil's Navel Shiren the Wanderer 4: The Eye of God and the Devil's Navel Shiren the Wanderer 4: The Eye of God and the Devil's Navel is a role-playing video game developed by Chunsoft and published by Spike. It is the fourth main entry in the "Shiren the Wanderer" series, which itself is a part of the larger "Mystery Dungeon" series. The game was originally released for the Nintendo DS in 2010; an expanded port was released for the PlayStation Portable in 2012. "Shiren the Wanderer 4" is a role-playing video game in which the player explores dungeons that change each time