Investigating Synchronized, Spatially Matched Multisensory Feedback Integrated with Neural Prosthetic Motor Control to Reduce Phantom Limb Distortions

I investigated how multisensory feedback could help neuroprosthetic limbs feel less like external devices and more like part of the body. Through a focused review of published studies, I examined how timing, sensory reliability, spatial mapping, and motor control influence prosthetic embodiment and phantom limb distortions. I found that synchronized sensory feedback can strengthen embodiment and reduce some distortions, while exact anatomical matching may not always be necessary for the brain to integrate artificial sensations. I also examined how sensory feedback and voluntary motor control interact, finding that both can contribute to embodiment, although the benefits of combining them remain uncertain. I used these findings to propose an evidence-informed framework for future neuroprostheses that better connects movement, sensation, and the brain’s perception of the body.