Overview
- A June 2026 review in Nature Reviews Bioengineering led by Giacomo Valle compares visual cortical prostheses and somatosensory cortical prostheses side by side and finds they use the same core implanted‑electrode and stimulation principles.
- Brain–computer interfaces in both fields work by placing microelectrodes in the cerebral cortex to deliver patterned electrical pulses that the brain interprets as sight or touch, bypassing damaged peripheral pathways.
- The paper maps shared technical hurdles that slow translation, including how to encode complex natural sensations, make electrodes last and remain biocompatible, and keep stimulation safe and spatially specific.
- Authors call for cross‑discipline collaboration and coordinated clinical services so a single engineering approach and unified trials could serve patients with vision loss or paralysis more quickly.
- The review reframes decades of parallel research as one engineering and clinical problem and says the next steps are aligned research agendas, larger clinical studies, and regulatory work to turn the concept into lasting therapies.