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Cognition, Action, et Plasticité Sensorimotrice


ESA, 2013-2017
Title: Motor learning and switching in hypergravity
Coordinator: Dr. O. White (UMR INSERM 1093, Cognition, Action et Plasticité Sensorimotrice, CAPS)



Neurological and cognitive responses to the spaceflight environment challenge the performance of crewmembers at critical times during spaceflight missions, including launch and entry. Operational performance such as controlling a vehicle or manipulating a complex system may be impaired by altered sensorimotor control, all of which are triggered by g-transitions and persist for some time after the central nervous system adapts to the new gravitational environment. Current countermeasures have not been optimized to minimize the functional impacts of these natural adaptive responses during g-transitions or to restore appropriate sensorimotor functions after g-transitions. Most investigations that addressed motor adaptation in new gravitational environments focused on distinct stable phases, such as the 0, 1 and 1.8g intervals in parabolic flights. However, gravity may also vary significantly and continuously over time. Multi-sensory recalibration is already time consuming in a stable new dynamical context but poses even more challenges when the underlying environment is also varying itself, bringing an additional cloud of uncertainty on motor processes. Here, we test tasks requiring tight inter-modal coordination when the gravitoinertial environment unpredictably varies through a series of experiments using centrifuges.


Projet ESA

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Université de Bourgogne