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<Paper uid="H05-1104">
  <Title>Proceedings of Human Language Technology Conference and Conference on Empirical Methods in Natural Language Processing (HLT/EMNLP), pages 827-834, Vancouver, October 2005. c(c)2005 Association for Computational Linguistics Parallelism in Coordination as an Instance of Syntactic Priming: Evidence from Corpus-based Modeling</Title>
  <Section position="8" start_page="832" end_page="832" type="evalu">
    <SectionTitle>
5.2 Results
</SectionTitle>
    <Paragraph position="0"> The results for the between-speaker and within-speaker adaptation are shown in Figure 10 and Figure 11 for same five phrase types as in the previous experiments.</Paragraph>
    <Paragraph position="1">  A positive adaptation effect can be seen in the between-speaker data. For each phrase type, the adaptation probability is greater than the prior. In the within-speaker data, by comparison, the magnitude of the adaptation advantage is greatly decreased, in comparison with Figure 10. Indeed, for most phrase types, the adaptation probability is lower than the prior, i.e., we have a case of negative adaptation.</Paragraph>
    <Section position="1" start_page="832" end_page="832" type="sub_section">
      <SectionTitle>
5.3 Discussion
</SectionTitle>
      <Paragraph position="0"> The results of the two analyses confirm that adaptation can indeed be found between speakers in dialog, supporting the results of experimental work reviewed by Pickering and Garrod (2004). The results do not support the notion that priming is due to the facilitation of production processes within a given speaker, an account which would have predicted adaptation within speakers, but not between speakers.</Paragraph>
      <Paragraph position="1"> The lack of clear positive adaptation effects in the within-speaker data is harder to explain--all current theories of priming would predict some effect here. One possibility is that such effects may have been obscured by decay processes: doing a within-speaker analysis entails skipping an intervening turn, in which priming effects were lost. We intend to address these concerns using more elaborate experimental designs in future work.</Paragraph>
    </Section>
  </Section>
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