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Beth Rakouskas, imaging courtesy of Arthur W. Toga, USC Laboratory of Neuro Imaging; computer connectors: Hans Joachim Roy/Shutterstock

Intelligence is hard to define, but you know it when you see it … Or do you? Artificial intelligence researchers can now design algorithms with almost humanlike abilities to perceive images, communicate with language, and learn from experience. Can we learn anything about how our neuron-based minds work from these machines? Do we need to worry about what these algorithmic minds might be learning about us?