Evaluation of Different Visual Keyboard Organizations on People With Complex Sensorimotor Disabilities

Day 0 : Collection of the general data required for the study, installation of the computer device including the LifeCompanion software with the different scanning keyboards configurations and organizations. Day 0 to Day 8 : write, in copy, a text using each of the virtual keyboard configurations. Day 8 : copying a text proposed by the investigator of identical difficulty for each condition, for a duration of 15 minutes, per experimental condition. This copying exercise, with the recording of measurements, will be done for each experimental condition. Day 8 to Day 16 : write a copy of a text of his/her choice for 10 minutes, using each of the virtual keyboard configurations. Day 16 : in a text-entry evaluation situation, copying a text proposed by the investigator, of identical difficulty for each condition.