Crossmodal associative memory representations in rodent orbitofrontal cortex |
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Authors: | Lipton P A Alvarez P Eichenbaum H |
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Affiliation: | Department of Psychology, Boston University, Massachusetts 02215, USA. |
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Abstract: | Firing patterns of neurons in the orbitofrontal cortex (OF) were analyzed in rats trained to perform a task that encouraged incidental associations between distinct odors and the places where their occurrence was detected. Many of the neurons fired differentially when the animals were at a particular location or sampled particular odors. Furthermore, a substantial fraction of the cells exhibited odor-specific firing patterns prior to odor presentation, when the animal arrived at a location associated with that odor. These findings suggest that neurons in the OF encode cross-modal associations between odors and locations within long-term memory. |
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