Inadequate participant recruitment (potentially due to COVID-19)

Researchers aim to determine whether the ReTrieve system for tactile training can improve tactile function (sense of touch) in the hand after brain injury when used at home for 6 weeks.

All participants who have been found eligible for this study and given informed consent will be randomized into two groups- either participants will begin ReTrieve training immediately following an initial assessment, or wait 8 weeks before beginning training.

During the study, participants will have a ReTrieve tactile training system delivered home for use over 6 weeks. Investigators will take three days to teach participants how to use the system. Each week for the remainder of the 6 weeks, participants will use this system for 4+ days per week on their own, and for 1 day supervised. During each supervised day, participants will complete approximately 1 hour of training while supervised over video chat with researchers.

Participants' tactile function will be assessed at three separate time points: once within one week before beginning training, once within one week after completing training, as well as once either 8 weeks before or 8 weeks after the training. This assessment has a required survey component, as well as an optional in-person clinical assessment component.

Inclusion Criteria:

• English speaking
• Be able to communicate and consent for themselves
• Have experienced a brain injury more than 6 months prior to the date of study participation
• Have chronic tactile deficits in at least one hand as a result of their brain injury
• Have sufficient motor ability in their affected hand(s) to complete reach and grasp tasks
• Have sufficient motor ability in their affected hand(s) to raise their arms above their head
• Have sufficient motor ability in their affected hand(s) to hold objects
• Have wireless internet and a laptop or mobile device at home for video conferencing
• Live in the greater Dallas area

Exclusion Criteria:

• Significant cognitive deficits that would preclude them from understanding instructions
• Significant communication deficits that would preclude them from consenting for themselves