Crows can evaluate visual info twice as fast as mammals

Much of what we know about how a brain makes decisions comes from studying monkeys watching dots. in a task known as a random-dot-motion task, a cloud of flickering specks drifts weakly in one direction while the subject tries to determine whether—and in which direction— it’s moving. The task has shown that in the primate neocortex, neurons gather visual evidence over time, with their firing rates climbing until they cross a threshold, when the animal commits to a decision. But avian brains that