The neural basis of thought symbols identified for the first time
If you ask a child to draw an animal that doesn’t exist, they’ll often cobble together components from real ones—say, the body of a seal with an elephant’s trunk, four octopus arms, and one lizard eye.
This imaginative ability is theorized to stem from our larger capacity to learn symbolic units—an arm or a leg in the aforementioned example, or perhaps a word—and then envision how those symbols could be reused in a new context. Neuroscientists call this facility for recombining familiar elements into fresh ideas compositional generalization, and it is hypothesized to be key to problem solving, making sense of new situations, and creative thinking.
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