Encyclopedia of Computational Neuroscience

Living Edition
| Editors: Dieter Jaeger, Ranu Jung

LFP Analysis: Overview

  • Alain Destexhe
  • Joshua A. Goldberg
Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-7320-6_782-1

Detailed Description

Local field potentials (LFPs) are low-frequency electrical potentials recorded with micro- or macro-electrodes throughout the brain. The upper frequency cutoff of the LFP is often considered to be around 100 Hz but may be as high as 500 Hz in some studies. The normal amplitude of the LFP can range from a few microvolts (e.g., in the basal ganglia) (Goldberg et al. 2004) to hundreds of microvolts in the cortex. Perhaps the earliest recording of an LFP may be attributed to Renshaw, Forbes, and Morison in 1940, who described these potentials in the cortex and the hippocampus of a cat under various anesthetics (Renshaw et al. 1940). Extensive electrophysiological studies have formed the current view that cortical LFPs result from synaptic activity (Eccles 1951; Creutzfeldt et al. 1966; Elul 1971; Klee and Rall 1977; Mitzdorf 1985; Bedard et al. 2004). Correspondingly, the LFP fluctuations tend to have a strict phase relationship to cortical discharge: negative...

Keywords

Deep Brain Stimulation Unit Activity Extracellular Medium Bold Signal Local Field Potential 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Unit of Neuroscience Information and ComplexityCentre national de la recherche scientifiqueGif-sur-YvetteFrance
  2. 2.Department of Medical Neurobiology, Institute for Medical Research Israel-Canada, Faculty of MedicineThe Hebrew University of JerusalemJerusalemIsrael