Evidence map›Paper›PMID 32656783›Full record

ArticleThe Journal of comparative neurology2021

The entorhinal cortex of the monkey: VI. Organization of projections from the hippocampus, subiculum, presubiculum, and parasubiculum.

Menno P Witter, David G Amaral

Open access · greenAbstract read
In one paragraph

Article in The Journal of comparative neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% of its field
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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Specialization of the human hippocampal long axis revisited.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Amidst an amygdala renaissance in Alzheimer's disease.Brain : a journal of neurology · 2024
    Article
  11. Specialization of the Human Hippocampal Long Axis Revisited.bioRxiv : the preprint server for biology · 2023
    Article
  12. Article
  13. Article
  14. The hearing hippocampus.Progress in neurobiology · 2022
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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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.

Menno P WitterDepartment of Psychiatry and Behavioral Sciences, The MIND Institute and the California National Primate Research Center, Davis, California, USA.ORCID 0000-0003-0285-1637
David G AmaralDepartment of Psychiatry and Behavioral Sciences, The MIND Institute and the California National Primate Research Center, Davis, California, USA.
Institute of Primate Research · KE

Funding

National Institute on Aging (NIA) ColonyP51OD011107 · OD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Simon J. Atkinson · 2012 to 2026
$191.5M
STUDIES OF NEURONAL SPECIFICITY IN THE HIPPOCAMPUSR01NS016980 · NINDS · UNIVERSITY OF CALIFORNIA DAVIS · PI AMARAL, DAVID G · 1985 to 2015
$6.7M
NIH HHS P51 OD011107NINDS NIH HHS R01 NS016980
6 · The paper itself

Abstract

The organization of projections from the macaque monkey hippocampus, subiculum, presubiculum, and parasubiculum to the entorhinal cortex was analyzed using anterograde and retrograde tracing techniques. Projections exclusively originate in the CA1 field of the hippocampus and in the subiculum, presubiculum, and parasubiculum. The CA1 and subicular projections terminate most densely in Layers V and VI of the entorhinal cortex, with sparser innervation of the deep portion of Layers III and II. Entorhinal projections from CA1 and the subiculum are topographically organized such that a rostrocaudal axis of origin is related to a medial-to-lateral axis of termination. A proximodistal axis of origin in CA1 and distoproximal axis in subiculum are related to a rostrocaudal axis of termination in the entorhinal cortex. The presubiculum sends a dense, bilateral projection to caudal parts of the entorhinal cortex. This projection terminates most densely in Layer III with sparser termination in Layers I, II, and V. The same parts of entorhinal cortex receive a dense projection from the parasubiculum. This projection terminates in Layers III and II. Both presubicular and parasubicular projections demonstrate the same longitudinal topographic organization as the projections from CA1 and the subiculum. These studies demonstrate that: (a) hippocampal and subicular inputs to the entorhinal cortex in the monkey are organized similar to those described in nonprimate species; (b) the topographic organization of the projections from the hippocampus and subicular areas matches that of the reciprocal projections from the entorhinal cortex to the hippocampus and the subicular areas.

Indexed as

AnimalsEntorhinal CortexFemaleHaplorhiniHippocampusMacaca fascicularisMaleNeural PathwaysParahippocampal Gyrushippocampal formationmemorynonhuman primatesubiculum, presubiculum, parasubiculum

Identifiers

PMID32656783
PMCPMC8933866
OpenAlexW3041667576

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.