Evidence map›Paper›PMID 40345378›Full record

ReviewNeurobiology of learning and memory2025

Memory processing by hippocampal adult-born neurons.

Parimal Chavan, Takashi Kitamura, Masanori Sakaguchi

Abstract readReview
In one paragraph

Review in Neurobiology of learning and memory, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
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

3 authors.

Parimal ChavanInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
Takashi KitamuraDepartment of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Masanori SakaguchiInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan. Electronic address: sakaguchi.masa.fp@alumni.tsukuba.ac.jp.

Funding

Neural circuit mechanisms for experience-dependent observational fearR01MH125916 · NIMH · UT SOUTHWESTERN MEDICAL CENTER · PI KITAMURA, TAKASHI · 2021 to 2025
$2.7M
Neural circuit mechanisms for temporal association learningR01MH120134 · NIMH · UT SOUTHWESTERN MEDICAL CENTER · PI KITAMURA, TAKASHI · 2020 to 2024
$2.0M
Neural circuit mechanisms for a mirror-induced self-directed behaviorR01NS138075 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI Takashi Kitamura · 2024 to 2026
$1.5M
NIMH NIH HHS R01 MH120134NIMH NIH HHS R01 MH125916NINDS NIH HHS R01 NS138075
6 · The paper itself

Abstract

This review provides an integrative overview of the functional roles of adult neurogenesis in the hippocampal dentate gyrus (DG), focusing specifically on its impact on memory processes across the lifespan. A distinguishing feature of this review is its systematic approach, organizing the contributions of adult-born neurons (ABNs) chronologically through the stages of memory-from initial encoding, through sleep-dependent consolidation, retrieval, and finally forgetting. Although the existence and extent of adult neurogenesis in the human DG remain debated, accumulating evidence suggests that ABNs support cognitive functions throughout adulthood. This perspective gains particular importance when considering cognitive decline associated with aging and neurological disorders such as Alzheimer's disease, which are linked to substantial reductions in adult neurogenesis. We compare traditional models of DG function with emerging evidence highlighting both shared and unique contributions of ABNs. For example, the DG is well-established for its role in pattern separation, and as key mediators of this function, ABNs-due to their transiently heightened plasticity and excitability-appear critical for discriminating novel or similar experiences. On the other hand, recent findings underscore the distinct and essential role of ABNs in memory consolidation during REM sleep, suggesting specialized functions of ABNs that are absent in developmentally born granule cells in the DG. Clinically, the potential therapeutic importance of enhancing neurogenesis in memory-related disorders, including post-traumatic stress disorder (PTSD), is emphasized, highlighting promising treatments such as memantine. Lastly, we outline key unresolved questions, advocating for future research aimed at understanding ABN-specific mechanisms. Far from being a mere evolutionary vestige, hippocampal ABNs represent dynamic and essential elements of neural plasticity that are critical for memory formation, adaptation, and resilience across the lifespan.

Indexed as

Dentate GyrusHippocampusMemoryMemory ConsolidationNeurogenesisNeuronsAnimalsHumans

Identifiers

PMID40345378
PMCPMC13213699

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.