LONDON – Scientists in the U.K. are claiming a world first, after successfully reproducing the electrophysiology of biological neurons in silicon chips. It is said that artificial neurons respond to non-linear physiological feedback in real time, in exactly the same way as their biological counterparts. Crucially, in terms of their use in medical implants, the analogue chips have a power consumption 10⁹ times lower than equivalent digital microprocessors, which other attempts to make synthetic neurons have used.