Scientists are able to record the simultaneous activity of more and more neurons in more and more organisms. (sciencedaily.com)
Yet how the fly's relatively small brain of 100,000 neurons — by comparison, a human brain contains a million times more neurons — guides the insect's flight is unclear. (simonsfoundation.org)
As the sound gets louder, more neurons fire simultaneously, which in turn allows the brain to detect the change in volume. (scientificamerican.com)