Roland Hemetzberger first ascented with „Neuron“ 9a+ his third 9a+ Route. The route was bolted 25 years ago by Stefan Fürst on in the austrian climbing crag Achleiten. „Neuron“ is only the sixth 9a+ route in Austria and with „Ouro“ the second 9a+ in Achleiten, which also first ascented by Roland.