Invariant visual representation by single neurons in the human brain

R. Quian Quiroga (), L. Reddy, G. Kreiman, C. Koch and I. Fried
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R. Quian Quiroga: California Institute of Technology
L. Reddy: California Institute of Technology
G. Kreiman: Massachusetts Institute of Technology
C. Koch: California Institute of Technology
I. Fried: University of California, (UCLA)

Nature, 2005, vol. 435, issue 7045, 1102-1107

Abstract: Stars in their eyes It takes moments for the human brain to recognize a person or an object even if seen under very different conditions. This raises the question: can a single neuron respond selectively to a given face regardless of view, age, pose or context? That question — it has been called the search for the ‘grandmother neuron’ — is difficult to test. But now, in patients with intractable epilepsy who were implanted with depth electrodes for a clinical process, an answer has been obtained. Patients were asked to respond to images on computer screens, and the results showed that neurons are pretty single-minded in what they respond to. For instance, one neuron will respond selectively to different pictures of the actress Jennifer Aniston, one to basketball player Michael Jordan, and another to different views of the Tower of Pisa.

Date: 2005
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DOI: 10.1038/nature03687

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