Brain-wide map of neurons lighting up during decision-making

Brain-wide map showing 75,000 analysed neurons lighting up during different stages of decision-making. At the beginning of the trial, the activity is quiet. Then it builds up in the visual areas at the back of the brain, followed by a rise in activity across the brain as evidence accumulates towards a decision. Next motor areas light up as there is movement onset and finally there is a spike in activity everywhere in the brain as the animal is rewarded. Credit: Dan Birman, International Brain Laboratory