plot (A) and in a more intuitive color plot (B) formats, both of which are used in subsequent figures. On the right (C) is the CSD profile derived from the LFP profile, with selected MUA recordings superimposed to help connect current source and sink configurations with local physiological processes. Layers are identified functionally using standard criteria; e.g., the initial current sink and largest peak MUA in response to robust sensory input occurs in Layer 4 (Lakatos et al., 2007;Schroeder et al., 2001;Steinschneider et al., 1992).
