01 May 2001

Monica Tamariz

This research focuses on the optimum use of representational space by words in speech and in the brain (for the mental lexicon). We use the concept of entropy from information theory to plot the information profiles of the words in a system, and apply this method to different Spanish word systems: a citation vs. a fast-speech transcription; a dictionary lexicon vs. the speech lexicon and the word tokens in a speech corpus vs. the word types. We analyze the system taking phonemes as the basic units, and then features as the basic units to obtain the information profiles. Finally we discuss the implications for the mental lexicon.

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