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Concept
Jean E. Fox Tree
Summary
Jean E. Fox Tree is a professor in the Department of Psychology at the University of California at Santa Cruz.
Fox Tree studies collateral signals that people use in spontaneous speech, such as fillers (e.g. ‘you know’), prosodic information (e.g. pauses between words, the melody of a sentence), fillers (e.g. ‘uh’ and ‘um’), and speech disfluencies.
Traditionally, such phenomena were given little attention by scholars, either because they were viewed as flaws in speech to be avoided or ignored, or because many psycholinguistic studies focused on speech that was prepared in advance rather than spontaneous speech. Rather than unwanted errors, Fox Tree's research has shown that collateral signals are actually meaningful and relevant to both speaker and listener, and that removing them from speech can negatively effect comprehension.
This view counters that proposed by Noam Chomsky, the well-known linguist from MIT who regarded such utterances as errors in performance and not part of proper language. Fox Tree showed, however, collateral signals are essential to successful communication in everyday situations and are beneficial to listeners.
Fox Tree studied the use of ‘oh’ in several experiments. They found that ‘oh’ can be used by speakers to signal to that the information they are providing is not connected to the information that just preceded it. That is, while an utterance that follows another is usually connected to the one that preceded it, ‘oh’ can be used to signal that the utterance is not connected to the one that directly before it, but rather to something further back (for example “I went to the market and bought some fruit. I got apples, pears, grapes, and oranges. It was really crowded there today. Oh, and kiwis.”) (1999).
Fox Tree published two articles with Herb Clark, Professor of Psychology at Stanford University. In one paper, Clark and Fox Tree (2002) argued that 'uh' and 'um' are conventional English words that speakers use in distinct ways. While 'uh' is used to signal a short delay, 'um' is used to signal a longer delay in speaking.
Official source
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