Periodicity Table (PDF format)
Information derived from a table need not be limited to the content of each cell; there is often information to be had by comparing between cells and the periodicity table is no exception. We can compare adjacent cells to determine whether the state and stability parameters are at odds with each other. To use an analogy, a broken toaster oven might be unable to reach a specific high temperature or it may be unable to maintain that temperature, or even a lower temperature, for any length of time, or both aspects of its functioning may be quantifiably impaired. By comparing state and stability indices within a property type, the more significant impairment may reveal itself. Likewise, we can compare cells from different rows, magnitude to phase, once they are converted into the same dimension, that of improbability). Corticality, the z-score difference between comodulation and coherence, is just such a measure under investigation by some clinicians. High values of corticality indicate greater magnitude consistency than phase consistency between sites. We can also compare across columns, network properties to local properties, for instance. Processing is said to be too focal when activity at a site does not correlate well with comodulatory or coherent properties shared at the site. (The measure is called focality, a ratio of magnitude-to-site-connectivity.)
