Evidence map›Paper›PMID 21356314›Full record

ArticleNeuroImage2011

Frequency-specific electrocorticographic correlates of working memory delay period fMRI activity.

Faraz Khursheed, Nitin Tandon, Kathrin Tertel, Thomas A Pieters, Michael A Disano, Timothy M Ellmore

Abstract read
In one paragraph

Article in NeuroImage, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.0field-weighted citation impact, top 9% of its field
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

29 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. The what, where and how of delay activity.Nature reviews. Neuroscience · 2019
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Intracranial recordings and human memory.Current opinion in neurobiology · 2015
    Review
  18. Review
  19. Article
  20. Article
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 at 1 institution in 1 country.

Faraz KhursheedThe Vivian L. Smith Department of Neurosurgery, The University of Texas Medical School at Houston, Houston, TX 77030, USA.
Nitin Tandon
Kathrin Tertel
Thomas A Pieters
Michael A Disano
Timothy M Ellmore
Philipps University of Marburg · DE

Funding

How inhibitory control prevents thought intrusions and sensory and motor provocationsR01DA026452 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ARON, ADAM ROBERT · 2009 to 2021
$4.0M
MRS: NEUROLOGICAL DVMT &DISORDERS: LEARNING, READING, COGNITIVE, APHASIA, DYSLES10RR019186 · NCRR · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI NARAYANA, PONNADA A · 2004 to 2004
$500k
NCRR NIH HHS K21 UL1RR024048NCRR NIH HHS L40 RR024048NCRR NIH HHS S10 RR019186NCRR NIH HHS S10 RR19186NIDA NIH HHS R01 DA026452NIDA NIH HHS R01DA026452
6 · The paper itself

Abstract

Electrocorticography (ECoG) and functional MRI (BOLD-fMRI) have been used previously to measure brain activity during working memory delay periods. These studies have separately reported oscillation changes in the theta (4-8 Hz) band and BOLD-fMRI increases during delay periods when information is maintained in memory. However, it is not known how intracranial cortical field potential (CFP) changes relate to BOLD-fMRI responses during delay periods. To answer this question, fMRI was obtained from six epilepsy patients during a visual working memory task. Then, following subdural macroelectrode implant, continuous ECoG was used to record CFPs during the same task. Time-frequency analyses showed delay period gamma band oscillation amplitude increases on electrodes located near fMRI activity, while in the theta band changes were higher for electrodes located away from fMRI activation. The amplitude of the ECoG gamma band response was significantly positively correlated with the fMRI response, while a negative correlation was found for the theta band. The findings are consistent with previous reports of local field potential (LFP) coupling in the gamma band with BOLD-fMRI responses during visual stimulation in monkeys, but are novel in that the relationship reported here persists after the disappearance of visual stimuli while information is being maintained in memory. We conclude that there is a relationship between BOLD-fMRI increases and human working memory delay period gamma oscillation increases and theta decreases. The spectral profile change provides a basis for comparison of working memory delay period BOLD-fMRI with field potential recordings in animals and other human intracranial EEG studies.

Indexed as

AdultAlgorithmsBrainCerebrovascular CirculationDrug ResistanceElectrodesElectroencephalographyElectrophysiological PhenomenaEpilepsyFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMemory, Short-TermOxygenOxygen

Identifiers

PMID21356314
PMCPMC3085578
OpenAlexW2048362990

What OpenQuestion holds

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LicenceTDM
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.