Evidence map›Paper›PMID 42324345›Full record

ArticleScientific reports2026

Remoteness sensitive theta network dynamics during early autobiographical memory access.

María Carla Navas, Ignacio Ferrelli, María Eugenia Pedreira, Rodrigo S Fernández, Luz Bavassi

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In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

María Carla NavasConsejo Nacional de Investigaciones Científicas y Técnicas - Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencia (IFIBYNE), Buenos Aires, Argentina.
Ignacio FerrelliConsejo Nacional de Investigaciones Científicas y Técnicas - Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencia (IFIBYNE), Buenos Aires, Argentina.
María Eugenia PedreiraConsejo Nacional de Investigaciones Científicas y Técnicas - Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencia (IFIBYNE), Buenos Aires, Argentina.
Rodrigo S FernándezConsejo Nacional de Investigaciones Científicas y Técnicas - Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencia (IFIBYNE), Buenos Aires, Argentina.
Luz BavassiConsejo Nacional de Investigaciones Científicas y Técnicas - Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencia (IFIBYNE), Buenos Aires, Argentina. luzbavassi@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Autobiographical memory (AM) is a crucial aspect of human cognition that aids in social understanding, decision-making, and future planning. Its inherent diversity provides a valuable framework for exploring the neural dynamics underlying the retrieval of memories of varying ages. This study aimed to determine whether the access phase of AM retrieval contains neural signatures sensitive to the remoteness of these memories. Forty-one participants engaged in an AM retrieval task while their brain activity was recorded using electroencephalography (EEG). We measured spectral power and time-resolved Granger Causality (GC) during the first 1500 ms following the onset of memory recovery. The results showed that remote autobiographical memories led to a significant increase in midline fronto-central theta power (6.5-8 Hz) around 900 ms after retrieval, compared to recent memories. Additionally, GC analyses revealed that both recent and remote memories showed an anterior-to-posterior flow of information, but the remote network present a denser and more efficient connectivity pattern in the theta band between 800 and 1100 milliseconds. These findings suggest that the remoteness of memories influences the early stages of autobiographical memory access. They also highlight theta power and its directed interactions as temporally precise markers of the neural mechanisms that support autobiographical memory retrieval.

Indexed as

BrainMemory, EpisodicTheta RhythmAdultBrain MappingElectroencephalographyFemaleHumansMaleMental RecallYoung AdultAutobiographical memoryEEGGranger causalityTheta band

Identifiers

PMID42324345
PMCPMC13562634

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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.