Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex

Y. Matsuda, K. Ohki, T. Saito, A. Ajima, D. S. Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Geometrical relationships among multiple cortical maps, such as those between ocular dominance and orientation maps, are a prominent feature of the brain's functional architecture. It is also well known that there is a strong bias of cortical responses toward the contralateral eye during early postnatal development. We wondered therefore whether and how such an imbalance of cortical responsiveness in a developing animal might influence the mutual geometrical relationships between orientation and ocular dominance maps in adult animals. The results of our study indicate the existence of a strong tendency for the peaks of the ipsilateral eye domains to coincide with the location of point singularities (pinwheel centers) in orientation maps. No such relationship was found for the peaks of contralateral eye domains. Computational studies reproduced similar asymmetry in the coincidence under the contralateral eye bias of inputs. Our study raised the idea that the pinwheel centers play an important role for retaining the weaker ipsilateral eye inputs during normal development. (C) 2000 Lippincott Williams and Wilkins.

Original languageEnglish
Pages (from-to)3337-3343
Number of pages7
JournalNeuroReport
Volume11
Issue number15
Publication statusPublished - Jan 1 2000
Externally publishedYes

Fingerprint

ocular Dominance
Visual Cortex
Cats
Brain

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

Cite this

Matsuda, Y., Ohki, K., Saito, T., Ajima, A., & Kim, D. S. (2000). Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex. NeuroReport, 11(15), 3337-3343.

Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex. / Matsuda, Y.; Ohki, K.; Saito, T.; Ajima, A.; Kim, D. S.

In: NeuroReport, Vol. 11, No. 15, 01.01.2000, p. 3337-3343.

Research output: Contribution to journalArticle

Matsuda, Y, Ohki, K, Saito, T, Ajima, A & Kim, DS 2000, 'Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex', NeuroReport, vol. 11, no. 15, pp. 3337-3343.
Matsuda Y, Ohki K, Saito T, Ajima A, Kim DS. Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex. NeuroReport. 2000 Jan 1;11(15):3337-3343.
Matsuda, Y. ; Ohki, K. ; Saito, T. ; Ajima, A. ; Kim, D. S. / Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex. In: NeuroReport. 2000 ; Vol. 11, No. 15. pp. 3337-3343.
@article{1e51b724b5fb4ea5b13efb70b954929b,
title = "Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex",
abstract = "Geometrical relationships among multiple cortical maps, such as those between ocular dominance and orientation maps, are a prominent feature of the brain's functional architecture. It is also well known that there is a strong bias of cortical responses toward the contralateral eye during early postnatal development. We wondered therefore whether and how such an imbalance of cortical responsiveness in a developing animal might influence the mutual geometrical relationships between orientation and ocular dominance maps in adult animals. The results of our study indicate the existence of a strong tendency for the peaks of the ipsilateral eye domains to coincide with the location of point singularities (pinwheel centers) in orientation maps. No such relationship was found for the peaks of contralateral eye domains. Computational studies reproduced similar asymmetry in the coincidence under the contralateral eye bias of inputs. Our study raised the idea that the pinwheel centers play an important role for retaining the weaker ipsilateral eye inputs during normal development. (C) 2000 Lippincott Williams and Wilkins.",
author = "Y. Matsuda and K. Ohki and T. Saito and A. Ajima and Kim, {D. S.}",
year = "2000",
month = "1",
day = "1",
language = "English",
volume = "11",
pages = "3337--3343",
journal = "NeuroReport",
issn = "0959-4965",
publisher = "Lippincott Williams and Wilkins",
number = "15",

}

TY - JOUR

T1 - Coincidence of ipsilateral ocular dominance peaks with orientation pinwheel centers in cat visual cortex

AU - Matsuda, Y.

AU - Ohki, K.

AU - Saito, T.

AU - Ajima, A.

AU - Kim, D. S.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Geometrical relationships among multiple cortical maps, such as those between ocular dominance and orientation maps, are a prominent feature of the brain's functional architecture. It is also well known that there is a strong bias of cortical responses toward the contralateral eye during early postnatal development. We wondered therefore whether and how such an imbalance of cortical responsiveness in a developing animal might influence the mutual geometrical relationships between orientation and ocular dominance maps in adult animals. The results of our study indicate the existence of a strong tendency for the peaks of the ipsilateral eye domains to coincide with the location of point singularities (pinwheel centers) in orientation maps. No such relationship was found for the peaks of contralateral eye domains. Computational studies reproduced similar asymmetry in the coincidence under the contralateral eye bias of inputs. Our study raised the idea that the pinwheel centers play an important role for retaining the weaker ipsilateral eye inputs during normal development. (C) 2000 Lippincott Williams and Wilkins.

AB - Geometrical relationships among multiple cortical maps, such as those between ocular dominance and orientation maps, are a prominent feature of the brain's functional architecture. It is also well known that there is a strong bias of cortical responses toward the contralateral eye during early postnatal development. We wondered therefore whether and how such an imbalance of cortical responsiveness in a developing animal might influence the mutual geometrical relationships between orientation and ocular dominance maps in adult animals. The results of our study indicate the existence of a strong tendency for the peaks of the ipsilateral eye domains to coincide with the location of point singularities (pinwheel centers) in orientation maps. No such relationship was found for the peaks of contralateral eye domains. Computational studies reproduced similar asymmetry in the coincidence under the contralateral eye bias of inputs. Our study raised the idea that the pinwheel centers play an important role for retaining the weaker ipsilateral eye inputs during normal development. (C) 2000 Lippincott Williams and Wilkins.

UR - http://www.scopus.com/inward/record.url?scp=0033787695&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033787695&partnerID=8YFLogxK

M3 - Article

C2 - 11059898

AN - SCOPUS:0033787695

VL - 11

SP - 3337

EP - 3343

JO - NeuroReport

JF - NeuroReport

SN - 0959-4965

IS - 15

ER -