Neural mechanisms of rapid natural scene categorization in human visual cortex

Marius V. Peelen (), Li Fei-Fei and Sabine Kastner
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Marius V. Peelen: Princeton University, Princeton, New Jersey 08540, USA
Li Fei-Fei: Princeton University, Princeton, New Jersey 08540, USA
Sabine Kastner: Princeton University, Princeton, New Jersey 08540, USA

Nature, 2009, vol. 460, issue 7251, 94-97

Abstract: Selective viewing People are remarkably adept at quickly detecting the presence of items of interest in their field of view. A functional magnetic resonance imaging study of healthy volunteers presented with a series of photographs, and asked to spot either people or cars in them, shows how this is achieved by the visual system. The brain rapidly determines whether there are objects relevant to whatever task it is attempting anywhere in the field of view even if they are not in regions that are under direct scrutiny. Intriguingly, the evidence shows that, contrary to our subjective experience of a complete internal representation of the external world, the neural representation of real-world scenes is limited to those objects that are directly relevant for ongoing behaviour.

Date: 2009
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DOI: 10.1038/nature08103

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