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1 Janelia Publications

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    Svoboda Lab
    03/24/10 | The functional properties of barrel cortex neurons projecting to the primary motor cortex.
    Sato TR, Svoboda K
    The Journal of Neuroscience. 2010 Mar 24;30(12):4256-60. doi: 10.1523/JNEUROSCI.3774-09.2010

    Nearby neurons, sharing the same locations within the mouse whisker map, can have dramatically distinct response properties. To understand the significance of this diversity, we studied the relationship between the responses of individual neurons and their projection targets in the mouse barrel cortex. Neurons projecting to primary motor cortex (MI) or secondary somatosensory area (SII) were labeled with red fluorescent protein (RFP) using retrograde viral infection. We used in vivo two-photon Ca(2+) imaging to map the responses of RFP-positive and neighboring L2/3 neurons to whisker deflections. Neurons projecting to MI displayed larger receptive fields compared with other neurons, including those projecting to SII. Our findings support the view that intermingled neurons in primary sensory areas send specific stimulus features to different parts of the brain.

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