Whole-brain neural activity across decision-making stages in mice (VIDEO)
Caption
75,000 neurons activated across the mouse brain during a decision-making task. Activity begins quietly, then builds up in visual areas at the back of the brain, followed by a rise in activity as evidence accumulates towards a decision. Motor areas then light up as there is movement onset, and finally activity ramps up across the entire brain as the animal is given a reward. Dot size reflects each neuron's firing rate, such that larger dots mean greater activity. The color of each dot represents a different grouping of related brain regions. This dynamic map is part of the International Brain Laboratory’s effort to chart brain-wide behavior at single-cell resolution.
Credit
Dan Birman (University of Washington/Allen Institute)
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