A certain type of neurons is more energy efficient than previously assumed

A contradiction, about how a type of neurons generates signals, was now resolved by researchers at the Institute of Science and Technology (IST) Austria. Writing in Neuron, Professor Peter Jonas and first author Hua Hu reconcile the observation that fast-spiking, parvalbumin-expressing GABAergic interneurons send trains of rapid signals, thought to be energy expensive, with the limited energy supply reaching the brain.