Another theme is communication. The concept of high- and low-context communications is based on signal communications theory. In reference to the analysis of cultures and the characterization of different cultures by the nature of the contextual to code ratio this should, perhaps, be carried further. In the real world, the code and hence, contextual information, can be adversely affected by noise and signal interruption. It is at this point that the high-context systems become vulnerable to miscommunication. It is sometimes necessary to examine the signal in detail to reconstruct the high-context, or symbolic, information.