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dc.contributor.authorFerreiro, Dardo Nahuel-
dc.contributor.authorConde Ocazionez, Sergio Andrés-
dc.contributor.authorPatriota, João Henrique Nascimento-
dc.contributor.authorSouza, Luã Carlos de-
dc.contributor.authorOliveira, Moacir Franco de-
dc.contributor.authorWolf, Fred-
dc.contributor.authorSchmidt, Kerstin Erika-
dc.identifier.citationFERREIRO, Dardo N.; CONDE-OCAZIONEZ, Sergio A.; PATRIOTA, João H.N.; SOUZA, Luã C.; OLIVEIRA, Moacir F.; WOLF, Fred; SCHMIDT, Kerstin E. Spatial clustering of orientation preference in primary visual cortex of the large rodent agouti. Iscience, [S. l.], v. 24, n. 1, p. 101882, jan. 2021. Doi: Disponível em: Acesso em: 14 dez. 2020.pt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.subjectPrimary visual cortex (V1)pt_BR
dc.subjectOptical imagingpt_BR
dc.subjectOrientation, spatialpt_BR
dc.subjectSensory Neurosciencept_BR
dc.titleSpatial clustering of orientation preference in primary visual cortex of the large rodent agoutipt_BR
dc.description.resumoAll rodents investigated so far possess orientation-selective neurons in the primary visual cortex (V1) but – in contrast to carnivores and primates – no evidence of periodic maps with pinwheel-like structures. Theoretical studies debating whether phylogeny or universal principles determine development of pinwheels point to V1 size as a critical constraint. Thus, we set out to study maps of agouti, a big diurnal rodent with a V1 size comparable to cats'. In electrophysiology, we detected interspersed orientation and direction-selective neurons with a bias for horizontal contours, corroborated by homogeneous activation in optical imaging. Compatible with spatial clustering at short distance, nearby neurons tended to exhibit similar orientation preference. Our results argue against V1 size as a key parameter in determining the presence of periodic orientation maps. They are consistent with a phylogenetic influence on the map layout and development, potentially reflecting distinct retinal traits or interspecies differences in cortical circuitrypt_BR
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