Evidence map›Paper›PMID 34375418›Full record

ArticleJournal of cognitive neuroscience2021

Prefrontal Lesions Disrupt Posterior Alpha-Gamma Coordination of Visual Working Memory Representations.

Saeideh Davoudi, Mohsen Parto Dezfouli, Robert T Knight, Mohammad Reza Daliri, Elizabeth L Johnson

Abstract read
In one paragraph

Article in Journal of cognitive neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

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

  1. Pooled it
  2. Behavioral Phenotype Associations With Resting State EEG Signal Complexity and Power Spectral Density in Fragile X Syndrome.Autism research : official journal of the International Society for Autism Research · 2026
    Article
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  5. Enhancing working memory in MCI: Modulating alpha-gamma coupling and gamma oscillations via rTMS.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  6. Article
  7. Specific EEG resting state biomarkers in FXS and ASD.Journal of neurodevelopmental disorders · 2024
    Article
  8. Cortical and white matter substrates supporting visuospatial working memory.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
    Article
  9. Article
  10. Theta-Alpha Connectivity in the Hippocampal-Entorhinal Circuit Predicts Working Memory Load.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

5 authors.

Saeideh DavoudiUniversity of Montréal, Quebec, Canada.
Mohsen Parto DezfouliBiomedical Engineering Department, School of Electrical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.ORCID 0000-0002-9064-2212
Robert T KnightUniversity of California, Berkeley.
Mohammad Reza DaliriBiomedical Engineering Department, School of Electrical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
Elizabeth L JohnsonUniversity of California, Berkeley.ORCID 0000-0001-5297-5019

Funding

Attention, Orientation and the Human Prefrontal CortexR01NS021135 · NINDS · UNIVERSITY OF CALIFORNIA DAVIS · PI Robert Thomas Knight · 1985 to 2026
$6.5M
ATTENTION, ORIENTATION, & THE HUMAN PREFRONTAL CORTEXR37NS021135 · NINDS · UNIVERSITY OF CALIFORNIA BERKELEY · PI KNIGHT, ROBERT THOMAS · 2013 to 2019
$3.6M
Measuring Electrical Activity from the Human Brain to Predict Memory Formation and Behavior Across the LifespanR00NS115918 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI JOHNSON, ELIZABETH · 2022 to 2024
$843k
Measuring Electrical Activity from the Human Brain to Predict Memory Formation and Behavior Across the LifespanK99NS115918 · NINDS · UNIVERSITY OF CALIFORNIA BERKELEY · PI JOHNSON, ELIZABETH · 2020 to 2021
$258k
NINDS NIH HHS 2R37NS21135NINDS NIH HHS K99 NS115918NINDS NIH HHS R00 NS115918NINDS NIH HHS R01 NS021135NINDS NIH HHS R37 NS021135
6 · The paper itself

Abstract

How does the human brain prioritize different visual representations in working memory (WM)? Here, we define the oscillatory mechanisms supporting selection of "where" and "when" features from visual WM storage and investigate the role of pFC in feature selection. Fourteen individuals with lateral pFC damage and 20 healthy controls performed a visuospatial WM task while EEG was recorded. On each trial, two shapes were presented sequentially in a top/bottom spatial orientation. A retro-cue presented mid-delay prompted which of the two shapes had been in either the top/bottom spatial position or first/second temporal position. We found that cross-frequency coupling between parieto-occipital alpha (α; 8-12 Hz) oscillations and topographically distributed gamma (γ; 30-50 Hz) activity tracked selection of the distinct cued feature in controls. This signature of feature selection was disrupted in patients with pFC lesions, despite intact α-γ coupling independent of feature selection. These findings reveal a pFC-dependent parieto-occipital α-γ mechanism for the rapid selection of visual WM representations.

Indexed as

ElectroencephalographyMemory, Short-TermCuesHumansOrientation, SpatialSpace Perception

Identifiers

PMID34375418
PMCPMC8428813

What OpenQuestion holds

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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.