Abstract
Previous lexical decision studies reported a processing advantage for words with multiple meanings (i.e., the “ambiguity advantage” effect). The present study further specifies the source of this advantage by showing that it is based on the extent of meaning relatedness of ambiguous words. Four types of ambiguous words, balanced homonymous (e.g., “panel”), unbalanced homonymous (e.g., “port”), metaphorically polysemous (e.g., “lip”), and metonymically polysemous (e.g., “rabbit”), were used in auditory and visual simple lexical decision experiments. It was found that ambiguous words with multiple related senses (i.e., polysemous words) are processed faster than frequency-matched unambiguous control words, whereas ambiguous words with multiple unrelated meanings (i.e., homonymous words) do not show such an advantage. In addition, a distinction within polysemy (into metaphor and metonymy) is demonstrated experimentally. These results call for a re-evaluation of models of word recognition, so that the advantage found for polysemous, but not homonymous, words can be accommodated.
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