Fuzzed symbols are not classical symbols
The dynamic patterns of neural activity Barnden correlates with symbols aren't like classical symbols, which can be composed and manipulated by well-understood logical operations: they're context dependent and only roughly correlated with events.
Christine A. Skarda & Walter J. Freeman, 1987.
Note: For discussion of the nonclassical symbolic representations, see the "Can connectionist nextworks exhibit systematicity" arguments on Map 5.