Voltage distributions in extracellular brain recordings
Nicholas V. Swindale, Peter F. Rowat, Matthew R. Krause, Martin A. Spacek, Catalin Mitelut
Abstract
We show that the voltage distributions in brain recordings, including high-pass extracellular recordings, the LFP, and human EEG, are accurately described by a Gaussian within ±1.5 standard deviations from zero, with heavy, exponential tails outside these limits. This offers a principled way of setting event detection thresholds in high-pass recordings. It also offers a means for identifying event-like, transient signals in LFP and EEG recordings which may correlate with other neural phenomena.
Topics & Concepts
ElectroencephalographyNeuroscienceElectrophysiologyNeural activityTransient (computer programming)Computer sciencePhysicsPattern recognition (psychology)Artificial intelligencePsychologyOperating systemNeural dynamics and brain functionEEG and Brain-Computer Interfacesstochastic dynamics and bifurcation