Study: NCT04373837

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Prismatic googles inducing prismatic adaptation (PA) associated to Virtual Reality (VR)
Description: The experimental condition consists of PA procedure associated to VR task: the pointing task will be followed by 5 sessions of VR task.~Pointing task. Patients will perform a session of 90 pointing movements toward a visual target presented in a variety of positions on the right, the left or at the center of the visual field. This pointing task will be performed with prismatic googles inducing a rightward shift of the visual field (experimental condition). After lenses removal, a leftward shift of spatial attention will be produced.~Virtual Reality task consists of a 3D computer-generated virtual environment that will be displayed on a desktop VR computer monitor. A joystick will provide the graphical interface for patients by allowing user-friendly exploration of virtual scenarios. Patients will be presented 16 actions, with dynamic simulations of real life situations. They will verbally estimate and reproduce the duration of each previously presented action.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Prismatic googles inducing prismatic adaptation (PA) associated to Virtual Reality (VR)
Description: The experimental condition consists of PA procedure associated to VR task: the pointing task will be followed by 5 sessions of VR task.~Pointing task. Patients will perform a session of 90 pointing movements toward a visual target presented in a variety of positions on the right, the left or at the center of the visual field. This pointing task will be performed with prismatic googles inducing a rightward shift of the visual field (experimental condition). After lenses removal, a leftward shift of spatial attention will be produced.~Virtual Reality task consists of a 3D computer-generated virtual environment that will be displayed on a desktop VR computer monitor. A joystick will provide the graphical interface for patients by allowing user-friendly exploration of virtual scenarios. Patients will be presented 16 actions, with dynamic simulations of real life situations. They will verbally estimate and reproduce the duration of each previously presented action.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Neutral googles inducing no-adaptation (NA) associated to Virtual Reality (VR)
Description: The sham condition of this study consists of NA procedure associated to VR task: the pointing task will be followed by 5 sessions of VR task.~Pointing task. Patients will perform a session of 90 pointing movements toward a visual target presented in a variety of positions on the right, the left or at the center of the visual field. This pointing task will be performed with neutral goggles (control condition), which should not induce a shift of the visual field and of spatial attention.~Virtual Reality task consists of a 3D computer-generated virtual environment that will be displayed on a desktop VR computer monitor. A joystick will provide the graphical interface for patients by allowing user-friendly exploration of virtual scenarios. Patients will be presented 16 actions, with dynamic simulations of real life situations. They will verbally estimate and reproduce the duration of each previously presented action.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Neutral googles inducing no-adaptation (NA) associated to Virtual Reality (VR)
Description: The sham condition of this study consists of NA procedure associated to VR task: the pointing task will be followed by 5 sessions of VR task.~Pointing task. Patients will perform a session of 90 pointing movements toward a visual target presented in a variety of positions on the right, the left or at the center of the visual field. This pointing task will be performed with neutral goggles (control condition), which should not induce a shift of the visual field and of spatial attention.~Virtual Reality task consists of a 3D computer-generated virtual environment that will be displayed on a desktop VR computer monitor. A joystick will provide the graphical interface for patients by allowing user-friendly exploration of virtual scenarios. Patients will be presented 16 actions, with dynamic simulations of real life situations. They will verbally estimate and reproduce the duration of each previously presented action.