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Are there cells in the brain that respond to a specific concept or entity, such as a particular actress? Science’s answer changed from a casual chuckle to a confident “yes” and then to a more nuanced “not exactly.”
How many apples on the tree? Quick answer: ‘four’, but beyond that the answer tends to be: ‘a lot’
Interplay between brain systems allows us to come up with original and creative solutions
7 minutes 
