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We recently published a study of synaptic properties of connections between the primary and secondary cortical auditory areas in brain slices from the mouse, and, in the present study, we aimed to extend this by performing analogous studies of the primary and secondary visual areas (V1 and V2). We found effectively the same results. That is, connections between V1 and V2 in both directions were quite similar; in each case, the glutamatergic inputs could be classified as one of two types, Class 1B (formerly \"driver\") and Class 2 (formerly \"modulator\"). There is a clear laminar correlation for these different inputs, in terms of both the laminae of origin and those in which the recorded cells were located. Our data suggest a common pattern to the functional organization of corticocortical connectivity in the mouse cortex."]},"AuthorList":{"@attributes":{"CompleteYN":"Y"},"Author":[{"@attributes":{"ValidYN":"Y"},"LastName":"De Pasquale","ForeName":"Roberto","Initials":"R","AffiliationInfo":[{"Affiliation":"Department of Neurobiology, University of Chicago, Chicago, Illinois 60637, USA."}]},{"@attributes":{"ValidYN":"Y"},"LastName":"Sherman","ForeName":"S Murray","Initials":"SM"}]},"Language":["eng"],"GrantList":{"@attributes":{"CompleteYN":"Y"},"Grant":[{"GrantID":"R01 DC008794","Acronym":"DC","Agency":"NIDCD NIH HHS","Country":"United States"},{"GrantID":"R01 EY022338","Acronym":"EY","Agency":"NEI NIH HHS","Country":"United States"},{"GrantID":"DC008794","Acronym":"DC","Agency":"NIDCD NIH HHS","Country":"United States"}]},"PublicationTypeList":{"PublicationType":[{"@attributes":{"UI":"D016428"},"@text":"Journal Article"},{"@attributes":{"UI":"D052061"},"@text":"Research Support, N.I.H., 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