Evidence map›Paper›PMID 37662693›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)

Combining aperiodic 1/f slopes and brain simulation: An EEG/MEG proxy marker of excitation/inhibition imbalance in Alzheimer's disease.

Pablo Martínez-Cañada, Eduardo Perez-Valero, Jesus Minguillon, Francisco Pelayo, Miguel A López-Gordo, Christian Morillas

Abstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing 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

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

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  17. Aperiodic Activity Reflects Pathologic Waveform Shapes in Focal Epilepsy.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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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

6 authors.

Pablo Martínez-CañadaDepartment of Computer Engineering Automation and Robotics University of Granada Granada Spain.ORCID https://orcid.org/0000-0003-2634-5229
Eduardo Perez-ValeroDepartment of Computer Engineering Automation and Robotics University of Granada Granada Spain.
Jesus MinguillonResearch Centre for Information and Communications Technologies (CITIC) University of Granada Granada Spain.
Francisco PelayoDepartment of Computer Engineering Automation and Robotics University of Granada Granada Spain.
Miguel A López-GordoResearch Centre for Information and Communications Technologies (CITIC) University of Granada Granada Spain.
Christian MorillasDepartment of Computer Engineering Automation and Robotics University of Granada Granada Spain.

Funding

Medical Research Council MR/L023784/1
6 · The paper itself

Abstract

introductionAccumulation and interaction of amyloid-beta (Aβ) and tau proteins during progression of Alzheimer's disease (AD) are shown to tilt neuronal circuits away from balanced excitation/inhibition (E/I). Current available techniques for noninvasive interrogation of E/I in the intact human brain, for example, magnetic resonance spectroscopy (MRS), are highly restrictive (i.e., limited spatial extent), have low temporal and spatial resolution and suffer from the limited ability to distinguish accurately between different neurotransmitters complicating its interpretation. As such, these methods alone offer an incomplete explanation of E/I. Recently, the aperiodic component of neural power spectrum, often referred to in the literature as the '1/f slope', has been described as a promising and scalable biomarker that can track disruptions in E/I potentially underlying a spectrum of clinical conditions, such as autism, schizophrenia, or epilepsy, as well as developmental E/I changes as seen in aging.

methodsUsing 1/f slopes from resting-state spectral data and computational modeling, we developed a new method for inferring E/I alterations in AD.

resultsWe tested our method on recent freely and publicly available electroencephalography (EEG) and magnetoencephalography (MEG) datasets of patients with AD or prodromal disease and demonstrated the method's potential for uncovering regional patterns of abnormal excitatory and inhibitory parameters. DISCUSSION: Our results provide a general framework for investigating circuit-level disorders in AD and developing therapeutic interventions that aim to restore the balance between excitation and inhibition.

Indexed as

1/f slopeAlzheimer's diseaseEEGexcitation‐inhibitionMEGnetwork of spiking neurons

Identifiers

PMID37662693
PMCPMC10474329

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Registered trials

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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.