Ephaptic coupling improves the neural population code

Neurons share an extracellular medium, so every spikes current sets up a local field that feeds back onto the membrane potential of nearby cells, an interaction known as ephaptic coupling.

Neurons share an extracellular medium, so every spikes current sets up a local field that feeds back onto the membrane potential of nearby cells, an interaction known as ephaptic coupling. The local field is usually studied by imposing it externally, for example by injecting…