![]() Astronauts will similarly be susceptible to spatial disorientation during gravitational transitions such as when landing on the surface of a planet or the Moon ( Shelhamer, 2015 Clément et al., 2020) because they will not have access to familiar gravitational cues and they will have previously undergone sensorimotor adaptions to weightlessness which are not fully understood. A majority of fatal aircraft accidents caused by spatial disorientation occur when pilots are unaware that they are disoriented ( Braithwaite et al., 1998). Studies have estimated that 90–100% of pilots have experienced it ( Newman, 2007 Gibb et al., 2011). Spatial disorientation occurs when pilots have an inaccurate perception of their position, motion or attitude and is caused by a variety of factors ( Poisson and Miller, 2014). If our model could work in real time, we calculated that immediate human action would result in the prevention of 80.7% of crashes, however, if we accounted for human reaction times (∼400 ms), only 30.3% of crashes could be prevented, suggesting that one solution could be an AI taking temporary control of the spacecraft during these moments. These unpredictable destabilizing joystick deflections, which occurred in the duration of time after the input data, are likely a result of spatial disorientation. We found that false negatives occurred when participants made destabilizing joystick deflections that rapidly moved the MARS away from the balance point. When we prioritized reducing false negatives we found it resulted in more false positives. We used stacked gated recurrent units (GRU) to predict crash events 800 ms in advance with an AUC (area under the curve) value of 99%. Our goal was to see whether we could use deep learning to predict the occurrence of crashes before they happened. There was a high rate of crashing into boundaries that were set at ± 60 ° from the balance point. We found 90% of participants in our spaceflight analog condition reported spatial disorientation and all of them showed it in their data. We created a spaceflight analog condition by having participants dynamically balance in the horizontal roll plane, where they did not tilt relative to the gravitational vertical and therefore could not use gravitational cues to determine their position. Participants used a joystick to stabilize around the balance point. In our earlier studies, we secured blindfolded participants into a Multi-Axis Rotation System (MARS) device that was programmed to behave like an inverted pendulum. They could become susceptible to spatial disorientation, potentially causing mission ending crashes. Were astronauts forced to land on the surface of Mars using manual control of their vehicle, they would not have familiar gravitational cues because Mars’ gravity is only 0.38 g. 4Psychology Department, Brandeis University, Waltham, MA, United States.3Volen Center for Complex Systems, Brandeis University, Waltham, MA, United States.2Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, Waltham, MA, United States.1Computer Science Department, Brandeis University, Waltham, MA, United States.Lackner 2,3,4 Paul DiZio 2,3,4 Pengyu Hong 1,3 Others on the bug report have now confirmed it too, and it seems even some wired USB devices (from other vendors) are also seeing the same problem.įor now, switching to Proton 6.3-8 or unplugging devices will get Unity games to work again on Linux and Steam Deck.Yonglin Wang 1† Jie Tang 1† Vivekanand Pandey Vimal 2,3*† James R. Even if a game is fully loaded and working, simply plugging it in would cause an instant crash. I tested this repeatedly, and yup - simply having that plugged in caused the problem. Proton 6.3-8 would work but for some games, that had other issues that Proton 7 solved.Īfter some fiddling, I eventually found out that unplugging my Logitech Wireless Receiver suddenly made the games work. There was a bug report open from others also seeing a similar issue. Certain Unity games wouldn't load, and instead would present me with a Unity error screen with a loading bar and then just quit. Recently, while trying to capture footage from the Steam Deck for the GamingOnLinux YouTube channel I came up against a problem. This is the same across Linux desktop and Steam Deck, as it's a problem somewhere with Proton. Update: a fix for this is now available in Proton Experimental, so switch to that for now.Ĭuriously, it seems Proton 7 and Proton Experimental are having problems with Unity games recently but there's a possible temporary workaround for you. ![]()
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