ArticleCerebral cortex (New York, N.Y. : 1991)2023
Site-dependent shaping of field potential waveforms.
Article in Cerebral cortex (New York, N.Y. : 1991), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 15 citations in OpenAlex.
- Brain sources composing irregular field potentials have unique temporal signatures.Cerebral cortex (New York, N.Y. : 1991) · 2025Article
- Intracranial Voltage Profiles from Untangled Human Deep Sources Reveal Multisource Composition and Source Allocation Bias.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Different sustained and induced alpha oscillations emerge in the human auditory cortex during sound processing.Communications biology · 2024Article
- Identification of Early Hippocampal Dynamics during Recognition Memory with Independent Component Analysis.eNeuro · 2024Article
- Diversity of cortical activity changes beyond depression during Spreading Depolarizations.Nature communications · 2023Article
- A dietary polyphenol metabolite alters CA1 excitability ex vivo and mildly affects cortico-hippocampal field potential generators in anesthetized animals.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Theoretical considerations and supporting evidence for the primary role of source geometry on field potential amplitude and spatial extent.Frontiers in cellular neuroscience · 2023Review
- Uncorrelated bilateral cortical input becomes timed across hippocampal subfields for long waves whereas gamma waves are largely ipsilateral.Frontiers in cellular neuroscience · 2023Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The activity of neuron populations gives rise to field potentials (FPs) that extend beyond the sources. Their mixing in the volume dilutes the original temporal motifs in a site-dependent manner, a fact that has received little attention. And yet, it potentially rids of physiological significance the time-frequency parameters of individual waves (amplitude, phase, duration). This is most likely to happen when a single source or a local origin is erroneously assumed. Recent studies using spatial treatment of these signals and anatomically realistic modeling of neuron aggregates provide convincing evidence for the multisource origin and site-dependent blend of FPs. Thus, FPs generated in primary structures like the neocortex and hippocampus reach far and cross-contaminate each other but also, they add and even impose their temporal traits on distant regions. Furthermore, both structures house neurons that act as spatially distinct (but overlapped) FP sources whose activation is state, region, and time dependent, making the composition of so-called local FPs highly volatile and strongly site dependent. Since the spatial reach cannot be predicted without source geometry, it is important to assess whether waveforms and temporal motifs arise from a single source; otherwise, those from each of the co-active sources should be sought.
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