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<Paper uid="J99-4006">
  <Title>Conceptions of Limited Attention and Discourse Focus-</Title>
  <Section position="8" start_page="622" end_page="623" type="concl">
    <SectionTitle>
7. Summary
</SectionTitle>
    <Paragraph position="0"> In sum, we agree with Walker that: (1) a model of attentional state is important for explaining the uses of certain linguistic expressions (e.g., cue phrases and pronouns); (2) human mental processes have limitations of both memory and processing. We disagree with Walker's claims that (1) limited memory capacity is the key architectural feature for attentional state; (2) IRUs should be explained on the basis of this limited capacity; (3) the felicity of pronominal processing after an interruption provides ev- null Computational Linguistics Volume 25, Number 4 idence of this limited memory capacity; (4) the psychological literature supports the cache model.</Paragraph>
  </Section>
class="xml-element"></Paper>