The origin of extracellular fields and currents — EEG, ECoG, LFP and spikes | Nature Reviews Neuroscience
Neuronal activity in the brain gives rise to transmembrane and extracellular electromagnetic fields that can be measured in the extracellular medium using several approaches. In this Review, Buzsáki and colleagues provide an overview of the mechanisms that underlie the generation of extracellular currents and fields.
Subjects Cellular neuroscience Computational neuroscience Extracellular signalling molecules Ion channels Synaptic transmission Key Points All currents in the brain superimpose to yield an 'electric field' at any given point in space. The current sources and sinks form dipoles or higher-order n-poles. Extracellular currents arise from many sources, including synaptic currents, fast action potentials and their afterpotentials, calcium spikes and voltage-dependent intrinsic currents. The magnitude of extracellular currents depends critically on two factors: the cytoarchitectural organization of
Explore this link on the map →related reading
- The Electrostatic Brain: How a Web of Neurons Generates the World-Simulation that is Youqri.org
- We have AE at homebrainhack.vercel.app
- Local origin of field potentials in visual cortex - PMCncbi.nlm.nih.gov
- Appendix 1. The Scientific Basis of EEG: Neurophysiology of EEG Generation in the Brain - Electroencephalography (EEG): An Introductory Text and Atlas of Normal and Abnormal Findings in Adults, Children, and Infants - NCBI Bookshelfncbi.nlm.nih.gov
- Neurotechnology Numbers Worth Knowingmilan.cvitkovic.net
- https://io0.github.ioio0.github.io
- Neural correlations, decisions and actions - PMCncbi.nlm.nih.gov
- All-optical electrophysiology reveals brain-state dependent changes in hippocampal subthreshold dynamics and excitability | bioRxivbiorxiv.org
- Magnetoencephalography - Wikipediaen.wikipedia.org
- Electrocorticography - Wikipediaen.wikipedia.org
- Designing tools for assumption-proof brain-mapping - PMCncbi.nlm.nih.gov
- Projects - Synthetic Neurobiology Groupsyntheticneurobiology.org