This "overly simplistic" description was adopted from Grossberg, who found it adequate for his purposes. It was also sufficiently sophisticated to satisfy David Hubel (1988 Eye Brain & Vision. New York: Scientific American Library). Every model of cortical neurons is overly simplistic. The only complete model of any cell in the brain is the cell itself. Therefore the modeler has to choose a level of description that captures the aspects of cortical processing on which he chooses to focus. This inevitably leaves out lower level details.