Mapping the local field potential

Local Field Potential in the Visual System

Biophysical Origin It is thought that the main contribution to the local field potential (LFP) derives from synchronous activation of neurons in the surrounding cortex. The LFP represents the sum over typically many thousands of local electrical fields that are generated within individual neurons. When a neuron is activated by the arrival of an excitatory postsynaptic potential on its dendrite,...

Supplemental Information How Local Is the Local Field Potential?

edge detection of potential field anomalies using local phase filters

potential fields are due to complex distribution of sources related to susceptibility and mass density variations for magnetic and gravity field respectively. in researching the lateral heterogeneous of different geological bodies, in particular their edge location potential field has some advantages. we mainly refer to linear features such as fault, folding axis, dyke, trend and border of the ...

Local Field Potential, Relationship to Unit Activity

Unit activity usually refers to timing of spikes elicited by individual neurons (single-unit activity, SUA) or local (r < 140 mm) population of neurons (multiunit activity, MUA; Buzsáki 2004). Although local field potential (LFP) reflects both subthreshold and spiking activities that are summed over larger population of neurons (r < 450 mm; Berens et al. 2008), usually it does not display discr...

Astrocytes Modulate Local Field Potential Rhythm

Ever since memory deficits were characterized in patient H.M. (Scoville and Milner, 1957), it has become clear that the hippocampal region is an important player in memory acquisition and retrieval. Not to mention that memory is of paramount importance for maintaining relationships, achieving personal and professional goals, and carrying out even simple day-today activities. Scientists have bee...