The Secret Life of Bees

Carl Zimmer in Smithsonian:

Bees-Seeley-631“Bees are to hives as neurons are to brains,” says Jeffrey Schall, a neuroscientist at Vanderbilt University. Neurons use some of the same tricks honeybees use to come to decisions. A single visual neuron is like a single scout. It reports about a tiny patch of what we see, just as a scout dances for a single site. Different neurons may give us conflicting ideas about what we’re actually seeing, but we have to quickly choose between the alternatives. That red blob seen from the corner of your eye may be a stop sign, or it may be a car barreling down the street. To make the right choice, our neurons hold a competition, and different coalitions recruit more neurons to their interpretation of reality, much as scouts recruit more bees.

Our brains need a way to avoid stalemates. Like the decaying dances of honeybees, a coalition starts to get weaker if it doesn’t get a continual supply of signals from the eyes. As a result, it doesn’t get locked early into the wrong choice. Just as honeybees use a quorum, our brain waits until one coalition hits a threshold and then makes a decision. Seeley thinks that this convergence between bees and brains can teach people a lot about how to make decisions in groups. “Living in groups, there’s a wisdom to finding a way for members to make better decisions collectively than as individuals,” he said.

More here.