Evidence map›Paper›PMID 25279772›Full record

ReviewCurrent opinion in neurobiology2015

Human intracranial high-frequency activity during memory processing: neural oscillations or stochastic volatility?

John F Burke, Ashwin G Ramayya, Michael J Kahana

Abstract readReview
In one paragraph

Review in Current opinion in neurobiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
–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

62 citing papers in PubMed.

  1. Hippocampal CA1 gamma power predicts the precision of spatial memory judgments.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Trial
  2. The human hippocampus contributes to both the recollection and familiarity components of recognition memory.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Trial
  3. Review
  4. Article
  5. Article
  6. Time-Resolved Aperiodic and Oscillatory Dynamics during Human Visual Memory Encoding.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. EEG decoders track memory dynamics.Nature communications · 2024
    Article
  12. Human Hippocampal Ripples Signal Encoding of Episodic Memories.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  13. Review
  14. Review
  15. Hippocampal activity predicts contextual misattribution of false memories.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  16. Passive functional mapping of receptive language cortex during general anesthesia using electrocorticography.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2023
    Article
  17. Hippocampal Theta and Episodic Memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  18. Article
  19. Article
  20. Article

2 more citing papers are in PubMed but not listed here.

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

3 authors.

John F BurkeUniversity of Pennsylvania, Department of Psychology, Philadelphia, PA 19104, United States.
Ashwin G RamayyaUniversity of Pennsylvania, Department of Psychology, Philadelphia, PA 19104, United States.
Michael J KahanaUniversity of Pennsylvania, Department of Psychology, Philadelphia, PA 19104, United States. Electronic address: kahana@psych.upenn.edu.

Funding

Associative Processes in Episodic MemoryR01MH055687 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI KAHANA, MICHAEL JACOB · 2002 to 2024
$7.9M
TRAINING PROGRAM IN BEHAVIORAL/COGNITIVE NEUROSCIENCET32MH017168 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI KABLE, JOSEPH W · 1985 to 2018
$4.2M
MATHEMATICAL MODELS OF HUMAN MEMORYR29MH055687 · NIMH · BRANDEIS UNIVERSITY · PI KAHANA, MICHAEL JACOB · 1997 to 2001
$218k
NIMH NIH HHS MH017168NIMH NIH HHS MH055687NIMH NIH HHS R01 MH055687NIMH NIH HHS R29 MH055687NIMH NIH HHS T32 MH017168
6 · The paper itself

Abstract

Intracranial high-frequency activity (HFA), which refers to fast fluctuations in electrophysiological recordings, increases during memory processing. Two views have emerged to explain this effect: (1) HFA reflects a synchronous signal, related to underlying gamma oscillations, that plays a mechanistic role in human memory and (2) HFA reflects an asynchronous signal that is a non-specific marker of brain activation. We review recent data supporting each of these views and conclude that HFA during memory processing is more consistent with an asynchronous signal. Memory-related HFA is therefore best conceptualized as a biomarker of neural activation that can functionally map memory with high spatial and temporal precision.

Indexed as

Biological ClocksStochastic ProcessesBrainBrain MappingElectroencephalographyGamma RhythmHumansMemoryNeurons

Identifiers

PMID25279772
PMCPMC4675136

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.