This schema specifies elements for the cortical neurophysiology datamodel used at neurodatabase.org . Most structures here build on more generic versions in the BrainML base package. Included are: Cortical Protocol Cortical Recording Site Experimental Submission Note: canonical location of the 'xml' schema is "http://www.w3.org/2001/xml.xsd", however sometimes this server is down or slow, so we use a local copy. Recording source, specialized to cortical neurons. Cell type of the Neuron. Means by which Neuron's cell type was determined. Recording source for single or multiple electrodes recording multi-unit activity extracellularly. Diameter of electrode tip doing multi-unit recording. Number of electrode channels, for multi-electrodes. Electrode spacing in X direction. Electrode spacing in Y direction. Electrode spacing in Z direction. Description of the electrode arrangement.