Evidence map›Paper›PMID 20880989›Full record

ReviewCold Spring Harbor perspectives in biology2010

Visual map development: bidirectional signaling, bifunctional guidance molecules, and competition.

David A Feldheim, Dennis D M O'Leary

Open access · bronzeAbstract readReview
In one paragraph

Review in Cold Spring Harbor perspectives in biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

105 citing papers in PubMed, 191 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Topographic map formation and the effects of NMDA receptor blockade in the developing visual system.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  18. Review
  19. Article
  20. Review

45 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

David A FeldheimMCD Biology, University of California, Santa Cruz, Santa Cruz, California 95064, USA. feldheim@biology.ucsc.edu
Dennis D M O'Leary
University of California, Santa Cruz · US

Funding

MECHANISMS GOVERNING DEVELOPMENT OF VISUAL CONNECTIONSR01EY007025 · NEI · WASHINGTON UNIVERSITY · PI O'LEARY, DENNIS D · 1986 to 2014
$8.9M
TOPOGRAPHIC MAPPING LABELS IN VISUAL DEVELOPMENTR01EY014689 · NEI · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI FELDHEIM, DAVID A · 2003 to 2012
$3.1M
NEI NIH HHS R01 EY007025NEI NIH HHS R01 EY014689NEI NIH HHS R01 EY07025PHS HHS EYO14689
6 · The paper itself

Abstract

Topographic maps are a two-dimensional representation of one neural structure within another and serve as the main strategy to organize sensory information. The retina's projection via axons of retinal ganglion cells to midbrain visual centers, the optic tectum/superior colliculus, is the leading model to elucidate mechanisms of topographic map formation. Each axis of the retina is mapped independently using different mechanisms and sets of axon guidance molecules expressed in gradients to achieve the goal of representing a point in the retina onto a point within the target. An axon's termination along the temporal-nasal mapping axis is determined by opposing gradients of EphAs and ephrin-As that act through their forward and reverse signaling, respectively, within the projecting axons, each of which inhibits interstitial branching, cooperating with a branch-promoting activity, to generate topographic specific branching along the shaft of the parent axons that overshoot their correct termination zone along the anterior-posterior axis of the target. The dorsal-ventral termination position is then determined using a gradient of ephrin-B that can act as a repellent or attractant depending on the ephrin-B concentration relative to EphB levels on the interstitial branches to guide them along the medial-lateral axis of the target to their correct termination zone, where they arborize. In both cases, axon-axon competition results in axon mapping based on relative rather than absolute levels of repellent or attractant activity. The map is subsequently refined through large-scale pruning driven in large part by patterned retinal activity.

Indexed as

AnimalsBrainBrain MappingEphrinsHumansReceptors, Eph FamilyRetinaRetinal Ganglion CellsSignal TransductionVisual PathwaysEphrinsReceptors, Eph Family

Identifiers

PMID20880989
PMCPMC2964178
OpenAlexW2121854884

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.