Evidence map›Paper›PMID 41794924›Full record

ArticleNature communications2026

Multimodal evidence for hippocampal engagement and modulation by functional connectivity-guided parietal TMS.

Zhuoran Li, Nicholas T Trapp, Joel Bruss, Xianqing Liu, Kang Wu, Ziyan Chen, Amit Etkin, Matthew A Howard, Aaron D Boes, Jing Jiang

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
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  5. Article
  6. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Zhuoran LiStead Family Department of Pediatrics, University of Iowa, Iowa City, IA, USA.
Nicholas T TrappDepartment of Psychiatry, University of Iowa, Iowa City, IA, USA.
Joel BrussStead Family Department of Pediatrics, University of Iowa, Iowa City, IA, USA.ORCID http://orcid.org/0000-0003-2415-1658
Xianqing LiuStead Family Department of Pediatrics, University of Iowa, Iowa City, IA, USA.
Kang WuStead Family Department of Pediatrics, University of Iowa, Iowa City, IA, USA.ORCID http://orcid.org/0000-0002-3684-1552
Ziyan ChenStead Family Department of Pediatrics, University of Iowa, Iowa City, IA, USA.
Amit EtkinAlto Neuroscience, Mountain View, CA, USA.ORCID http://orcid.org/0000-0001-8259-3521
Matthew A HowardDepartment of Neurology, University of Iowa, Iowa City, IA, USA.
Aaron D BoesStead Family Department of Pediatrics, University of Iowa, Iowa City, IA, USA.ORCID http://orcid.org/0000-0002-7865-9257
Jing JiangStead Family Department of Pediatrics, University of Iowa, Iowa City, IA, USA. jing-jiang@uiowa.edu.ORCID http://orcid.org/0000-0002-2991-2076

Funding

Investigating the neural mechanisms of repetitive brain stimulation with invasive and noninvasive electrophysiology in humansR01MH132074 · NIMH · STANFORD UNIVERSITY · PI Aaron D Boes, Corey J Keller · 2023 to 2026
$3.1M
Mapping and Manipulating Circuits for Emotion and Cognition in Anxiety and DepressionR01MH103324 · NIMH · STANFORD UNIVERSITY · PI ETKIN, AMIT · 2014 to 2017
$3.0M
Mapping a Causal Prefrontal Pathway for Amygdala Modulation Utilizing Invasive and Noninvasive Brain Stimulation and Recording Methods in HumansR01MH136197 · NIMH · UNIVERSITY OF IOWA · PI Jing Jiang · 2024 to 2026
$1.7M
Brain and Behavior Research Foundation (Brain & Behavior Research Foundation) 29441Brain and Behavior Research Foundation (Brain & Behavior Research Foundation) 31275U.S. Department of Health & Human Services | National Institutes of Health (NIH) R01MH103324U.S. Department of Health & Human Services | National Institutes of Health (NIH) R01MH136197U.S. Department of Health & Human Services | National Institutes of Health (NIH) R21MH120441, R01NS114405U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) 1K23MH125145, R01MH125160, R01MH132074U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) R01MH132074
6 · The paper itself

Abstract

Hippocampal activity supports memory and many other brain functions. Transcranial magnetic stimulation (TMS) guided by hippocampal functional connectivity (FC) shows promise in improving memory, but direct neural evidence of its capacity to engage and modulate hippocampal activity is lacking. Here we combined TMS with intracranial electroencephalography (iEEG) in 8 neurosurgical patients and with functional magnetic resonance imaging (fMRI) in 79 neurologically healthy participants. We identified that (1) single-pulse TMS to individualized parietal cortex guided by hippocampal-FC preferentially evoked distinct temporal and spectral activity patterns in the hippocampus, (2) variability in TMS-evoked hippocampal responses related to individual differences in parietal-hippocampus FC strength, and (3) repetitive TMS to hippocampal-FC-guided parietal cortex selectively suppressed hippocampal theta oscillations. These findings provide multimodal causal neural evidence and important mechanistic insights supporting the development of personalized neuromodulation strategies aimed at improving hippocampus-dependent functions.

Indexed as

HippocampusParietal LobeTranscranial Magnetic StimulationAdultBrain MappingElectroencephalographyFemaleHumansMagnetic Resonance ImagingMaleMemoryMiddle AgedTheta RhythmYoung Adult

Identifiers

PMID41794924
PMCPMC13096217

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.