Since their discovery over 100 years ago, neurons called tufted cells, in the brain’s olfactory bulb, have been difficult to study. The close proximity between tufted cells and other neurons called mitral cells has restricted researchers’ ability to dissect each individual neuron’s activity. However, by leveraging fluorescent genetic markers and new optical imaging technologies, Cold Spring Harbor Laboratory (CSHL) neuroscientists have been able to compare the neurons’ activity. Their research is published in Neuron.