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Spatial clustering of tuning in mouse primary visual cortex.
Ringach, Dario L; Mineault, Patrick J; Tring, Elaine; Olivas, Nicholas D; Garcia-Junco-Clemente, Pablo; Trachtenberg, Joshua T.
Afiliación
  • Ringach DL; Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA.
  • Mineault PJ; Department of Psychology, University of California, Los Angeles, California 90095, USA.
  • Tring E; Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA.
  • Olivas ND; Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA.
  • Garcia-Junco-Clemente P; Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA.
  • Trachtenberg JT; Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA.
Nat Commun ; 7: 12270, 2016 08 02.
Article en En | MEDLINE | ID: mdl-27481398
The primary visual cortex of higher mammals is organized into two-dimensional maps, where the preference of cells for stimulus parameters is arranged regularly on the cortical surface. In contrast, the preference of neurons in the rodent appears to be arranged randomly, in what is termed a salt-and-pepper map. Here we revisited the spatial organization of receptive fields in mouse primary visual cortex by measuring the tuning of pyramidal neurons in the joint orientation and spatial frequency domain. We found that the similarity of tuning decreases as a function of cortical distance, revealing a weak but statistically significant spatial clustering. Clustering was also observed across different cortical depths, consistent with a columnar organization. Thus, the mouse visual cortex is not strictly a salt-and-pepper map. At least on a local scale, it resembles a degraded version of the organization seen in higher mammals, hinting at a possible common origin.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Orientación / Corteza Visual / Vías Visuales / Percepción Visual / Células Piramidales Límite: Animals Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2016 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Orientación / Corteza Visual / Vías Visuales / Percepción Visual / Células Piramidales Límite: Animals Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2016 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido