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Nature Neuroscience 10, 142–143 (1 February 2007) | doi:10.1038/nn0207-142

Intelligence in action

Matthew V Chafee & James Ashe

The primate prefrontal cortex is associated with cognitive operations linked to intelligence. A study in Nature now shows that prefrontal neurons represent movement sequences at an abstract level, even when not required for the task. The brain is a sensorimotor interface that in some cases exhibits the elusive property of intelligence. What is intelligence, and how is it implemented by living neurons?