Activity of 10,000 neurons in the visual cortex recorded via calcium imaging. Each row represents the activity of a single neuron over time. Credit: Marius Pachitariu


How Many Cells Are Needed for an Accurate Picture of Neural Activity?

BY:Simons Collaboration on the Global Brain

Scientists can routinely track the activity of hundreds — sometimes even thousands — of neurons in the brain of awake animals. But how many cells do they need to monitor to truly understand how the brain functions? That question has become a hot topic among researchers doing large-scale neural recordings. The answer could shape the future of the field, influencing how scientists design experiments and new technologies.

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