Scientists have taught mice to smell an odour that doesn't exist in a study to show how the brain identifies different scents. In experiments on mice, US neuroscientists generated an electrical signature that was perceived as an odour in the brain’s smell-processing centre, the olfactory bulb. Mice were trained to recognise synthetic odour patterns through artificially stimulated neural activity in the olfactory bulb. This allows our brain to process odour information coming from the nose and perceive, react to and remember smells. The experiments focused on the mice's olfactory bulb, located behind the nose in both animals and humans.

Source: Daily Mail June 26, 2020 15:35 UTC