Spatially selective cortical activation by intraneural nerve stimulation

A NeuroNexus E32-1000-30-200 ECoG grid was placed on the rabbit visual cortex to record electrically evoked potentials due to intraneural optic nerve stimulation. The study by Dr. Diego Ghezzi’s group at Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland is in the Journal of Neural Engineering and highlights the ability to activate relatively few nerve fibers using their novel stimulating electrode layout. The selectivity resulted in spatially constrained activation in the visual cortex.