Chunk #21 — 3. Impact of spatial scale on CSD implementations — 3.1. Empirical considerations for linear (one-dimensional) intracranial recordings — 3.1.1. The cortical dipole and field closure
active source), with somewhat shallower, circuit-closing sinks above and below (immediately above and below channels labeled as lamina IV). In contrast to the early negativity, the positive components invert more superficially, corresponding to sequential supragranular activation (CSD sinks at 22.8–23.0 mm), with uncancelled sources in superficial laminae. However, the morphology of the AEP shifts dramatically as the corresponding active sinks are approached.2
