VR mirror therapy after stroke

The question

Here's today's challenge: Can seeing both hands move help the brain rewire? You're with Virtual Reality Rehabilitation Videos, on virtualrealityrehabilitation.com.

Meet the VR mirror therapy after stroke

In classic mirror therapy, a mirror makes a moving healthy limb look like the affected one. VR takes this further: the patient moves one hand and sees both virtual hands move, or attempts a task and sees the virtual body complete it. This can encourage cortical reorganisation after stroke or amputation.

How it runs

So, what does practice look like? First, calibrate the patient's movement and the virtual body. Next, choose simple functional tasks, such as reaching for a cup. Then, mirror the healthy limb's movement onto the affected side. Finally, progress to asymmetrical, lifelike tasks.

Strengths and limits

What's the upside? More engaging and flexible than a physical mirror. Tasks can be functional, not just abstract movements. What to watch for? Evidence is still growing; it complements standard therapy. Needs good tracking of the healthy limb.

What to measure

Let's look at the numbers that matter. Movement range and smoothness: motor recovery. Task completion and time: functional gains. Session counts: dose. After weeks of mirrored reaching in VR, a patient's affected hand starts to join in. The movement smoothness curve rises first.

The takeaway

Remember: task completion and time and its neighbours tell you how the task was done, not just how fast. Everything's written up below if you want to go deeper.