 Local field potential

An extracellular voltage reflecting weighted contributions from nearby and sometimes more distant neuronal currents. Its spatial sensitivity depends on anatomy, electrode placement and signal properties; it is not simply the firing rate of the nearest cell.

Local field potentials (LFPs) are electrical signals recorded from a specific region of the brain or a similar biological tissue. They represent the summed electrical activity of multiple nearby neurons and are primarily associated with the activity of synaptic potentials, rather than the action potentials of individual neurons. LFPs are measured using microelectrodes that are typically inserted into the tissue.