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This new electrode-naming-system is more complicated giving rise to the Modified Combinatorial Nomenclature (MCN). This MCN system uses 1, 3, 5, 7, 9 for the left hemisphere which represents 10%, 20%, 30%, 40%, 50% of the inion-to-nasion distance respectively. The introduction of extra letter codes allows the naming of intermediate electrode sites.
Electrode locations of International 10-20 system for EEG (electroencephalography) recording: Date: 30 May 2010: Source: Own work: Author: トマトン124 (talk) Permission (Reusing this file) Public domain
Some systems use caps or nets into which electrodes are embedded; this is particularly common when high-density arrays of electrodes are needed. [citation needed] Electrode locations and names are specified by the International 10–20 system [61] for most clinical and research applications (except when high-density arrays are used). This ...
English: International 10-10 system for EEG electrode placement, showing modified combinatorial nomenclature. Date: 11 July 2017: Source: ... 10-20 系統 ; Metadata ...
These electrodes will provide a readout of the brain activity that can be "scored" into different stages of sleep (N1, N2, and N3 – which combined are referred to as NREM sleep – and Stage R, which is rapid eye movement sleep, or REM, and wakefulness). The EEG electrodes are placed according to the International 10-20 system.
English: EEG electrode positions in the 10-10 system using modified combinatorial nomenclature as presented by Klem, Lüders, Jasper, & Elger (1999). The electrode sites are colour-coded according to the lobes of the brain which their labels (F, C, P, O, and T) represent.
Richard Caton discovered electrical activity in the cerebral hemispheres of rabbits and monkeys and presented his findings in 1875. [4] Adolf Beck published in 1890 his observations of spontaneous electrical activity of the brain of rabbits and dogs that included rhythmic oscillations altered by light, detected with electrodes directly placed on the surface of the brain. [5]
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