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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Lingua. 2014 Feb 1;140:35–51. doi: 10.1016/j.lingua.2013.11.007

Figure 1.

Figure 1

Comparison of different representational models regarding the toleration of a mid vowel variant that crosses a categorical boundary. Left: Exemplar models include vowel variants directly in the exemplar sets, and the mapping can occur directly. Middle: Fully specified featural models have to stipulate a licensing rule that would allow a low vowel to be interpreted as a mid vowel. Right: The underspecified featural model can directly map a low vowel onto the underspecified representation of a mid vowel.