ArticlePLoS biology2019
Spectral fingerprints or spectral tilt? Evidence for distinct oscillatory signatures of memory formation.
Article in PLoS biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.
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Who cites it
29 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The Effects of Neurofeedback on Aging-Associated Cognitive Decline: A Systematic Review.Applied psychophysiology and biofeedback · 2021Pooled it
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- Time-Resolved Aperiodic and Oscillatory Dynamics during Human Visual Memory Encoding.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Neural dynamics of social verb processing: an MEG study.Social cognitive and affective neuroscience · 2025Article
- Context familiarity is a third kind of episodic memory distinct from item familiarity and recollection.iScience · 2024Article
- High frequency oscillations in human memory and cognition: a neurophysiological substrate of engrams?Brain : a journal of neurology · 2024Review
- Cross-regional coordination of activity in the human brain during autobiographical self-referential processing.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Cognition is an emergent property.Current opinion in behavioral sciences · 2024Article
- Theta activity and cognitive functioning: Integrating evidence from resting-state and task-related developmental electroencephalography (EEG) research.Developmental cognitive neuroscience · 2024Review
- Intracranial Neurofeedback Modulating Neural Activity in the Mesial Temporal Lobe During Memory Encoding: A Pilot Study.Applied psychophysiology and biofeedback · 2023Article
- Non-invasive temporal interference electrical stimulation of the human hippocampus.Nature neuroscience · 2023Article
- Hippocampal activity predicts contextual misattribution of false memories.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Paving the Way for Memory Enhancement: Development and Examination of a Neurofeedback System Targeting the Medial Temporal Lobe.Biomedicines · 2023Article
- Hippocampal theta activity during encoding promotes subsequent associative memory in humans.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
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- High gamma activity distinguishes frontal cognitive control regions from adjacent cortical networks.Cortex; a journal devoted to the study of the nervous system and behavior · 2023Article
- Hippocampal Theta and Episodic Memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Magnetoencephalography can reveal deep brain network activities linked to memory processes.Human brain mapping · 2022Article
Corrections and comments
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9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Decreases in low-frequency power (2-30 Hz) alongside high-frequency power increases (>40 Hz) have been demonstrated to predict successful memory formation. Parsimoniously, this change in the frequency spectrum can be explained by one factor, a change in the tilt of the power spectrum (from steep to flat) indicating engaged brain regions. A competing view is that the change in the power spectrum contains several distinct brain oscillatory fingerprints, each serving different computations. Here, we contrast these two theories in a parallel magnetoencephalography (MEG)-intracranial electroencephalography (iEEG) study in which healthy participants and epilepsy patients, respectively, studied either familiar verbal material or unfamiliar faces. We investigated whether modulations in specific frequency bands can be dissociated in time and space and by experimental manipulation. Both MEG and iEEG data show that decreases in alpha/beta power specifically predicted the encoding of words but not faces, whereas increases in gamma power and decreases in theta power predicted memory formation irrespective of material. Critically, these different oscillatory signatures of memory encoding were evident in different brain regions. Moreover, high-frequency gamma power increases occurred significantly earlier compared to low-frequency theta power decreases. These results show that simple "spectral tilt" cannot explain common oscillatory changes and demonstrate that brain oscillations in different frequency bands serve different functions for memory encoding.
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