Evidence map›Paper›PMID 40110999›Full record

ArticleeLife2025

Two long-axis dimensions of hippocampal-cortical integration support memory function across the adult lifespan.

Kristin Nordin, Robin Pedersen, Farshad Falahati, Jarkko Johansson, Filip Grill, Micael Andersson, Saana M Korkki, Lars Bäckman, Andrew Zalesky, Anna Rieckmann and 2 more

Abstract read
In one paragraph

Article in eLife, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Longitudinal hippocampal axis in large-scale cortical systems underlying development and episodic memory.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Three-dimensional histology reveals dissociable human hippocampal long-axis gradients of Alzheimer's pathology.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  12. Article
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

12 authors.

Kristin NordinDepartment of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Solna, Sweden.ORCID https://orcid.org/0000-0003-4157-1638
Robin PedersenWallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden.
Farshad FalahatiDepartment of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Solna, Sweden.
Jarkko JohanssonUmeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden.ORCID https://orcid.org/0000-0002-4501-4735
Filip GrillCentre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands.
Micael AnderssonUmeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden.
Saana M KorkkiDepartment of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Solna, Sweden.
Lars BäckmanDepartment of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Solna, Sweden.
Andrew ZaleskyDepartment of Biomedical Engineering, the University of Melbourne, Melbourne, Australia.
Anna RieckmannUmeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden.
Lars NybergUmeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden.ORCID https://orcid.org/0000-0002-3367-1746
Alireza SalamiDepartment of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Solna, Sweden.ORCID https://orcid.org/0000-0002-4675-8437

Funding

Karolinska Institutet StratNeuroKnut och Alice Wallenbergs Stiftelse Fellow grantKnut och Alice Wallenbergs Stiftelse Scholar grantRiksbankens Jubileumsfond P20-0515Vetenskapsrådet 2016-01936
6 · The paper itself

Abstract

The hippocampus is a complex structure critically involved in numerous behavior-regulating systems. In young adults, multiple overlapping spatial modes along its longitudinal and transverse axes describe the organization of its functional integration with neocortex, extending the traditional framework emphasizing functional differences between sharply segregated hippocampal subregions. Yet, it remains unknown whether these modes (i.e. gradients) persist across the adult human lifespan, and relate to memory and molecular markers associated with brain function and cognition. In two independent samples, we demonstrate that the principal anteroposterior and second-order, mid-to-anterior/posterior hippocampal modes of neocortical functional connectivity, representing distinct dimensions of macroscale cortical organization, manifest across the adult lifespan. Specifically, individual differences in topography of the second-order gradient predicted episodic memory and mirrored dopamine D1 receptor distribution, capturing shared functional and molecular organization. Older age was associated with less distinct transitions along gradients (i.e. increased functional homogeneity). Importantly, a youth-like gradient profile predicted preserved episodic memory - emphasizing age-related gradient dedifferentiation as a marker of cognitive decline. Our results underscore a critical role of mapping multidimensional hippocampal organization in understanding the neural circuits that support memory across the adult lifespan.

Indexed as

HippocampusLongevityMemoryNeocortexAdolescentAdultAgedFemaleHumansMagnetic Resonance ImagingMaleMemory, EpisodicMiddle AgedYoung Adultagingdopaminefunctional connectivityhippocampushumanmemoryneuroscience

Identifiers

PMID40110999
PMCPMC11925452

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.