Spatial clustering of orientation preference in primary visual cortex of the 
large rodent agouti

Ferreiro, Dardo N.; Conde-Ocazionez, Sergio A.; Patriota, João H.N.; Souza, Luã C.; Oliveira, Moacir F.; Wolf, Fred; Schmidt, Kerstin E.

doi:10.1016/j.isci.2020.101882

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Spatial clustering of orientation preference in primary visual cortex of the large rodent agouti

MPS-Authors

/persons/resource/persons173710

Wolf, Fred
Research Group Theoretical Neurophysics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Ferreiro, D. N., Conde-Ocazionez, S. A., Patriota, J. H., Souza, L. C., Oliveira, M. F., Wolf, F., et al. (2021). Spatial clustering of orientation preference in primary visual cortex of the large rodent agouti. iScience, 24(1): 101882. doi:10.1016/j.isci.2020.101882.

Cite as: https://hdl.handle.net/21.11116/0000-0009-D4EE-C

Abstract

All rodents investigated so far possess orientation-selective neurons in the primary
visual cortex (V1) but – in contrast to carnivores and primates – no evidence of pe-
riodic 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 inter-
spersed orientation and direction-selective neurons with a bias for horizontal con-
tours, 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 circuitry.