A team of Harvard scientists led by Venkatesh Murthy, professor of molecular and cellular biology, tackled a seemingly complex phenomenon in their investigation: how mice can distinguish scents from one another. Using a machine-learning algorithm, Murthy and his colleagues “trained” a computer to recognize the neural patterns linked to various scents, and to identify specific odors in a mixture of smells. The study, published in the journal Neuron, focused on creating an algorithm for a compu...