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Constraints on Exchange Edits During Noisy-Channel Inference.

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This summary is machine-generated.

Comprehenders use word exchanges to fix implausible sentences, but only with function words, not nouns, when answering yes-no questions. Explicit corrections allow frequent noun exchanges, suggesting task-dependent interpretation strategies.

Keywords:
GermanNoisy channelPsycholinguisticsRational inferenceSentence processing

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Area of Science:

  • Psycholinguistics
  • Computational Linguistics
  • Cognitive Science

Background:

  • The noisy channel framework explains successful communication despite input errors.
  • Comprehenders infer intended meaning using prior probabilities and noise corruption likelihood.
  • Understanding conditions for considering word exchanges as noise is crucial for sentence processing models.

Purpose of the Study:

  • To investigate if and when comprehenders consider word exchanges as a source of sentence corruption.
  • To examine how syntactic category and sentence type influence the interpretation of implausible sentences.
  • To compare interpretation strategies in yes-no questions versus explicit sentence correction tasks.

Main Methods:

  • Five experiments processing German sentences (SO, OS, passive) with implausible meanings.
  • Sentences were repairable by exchanging function words or nouns.
  • Interpretation probed via yes-no questions (Experiments 1-4) and explicit correction (Experiment 5).

Main Results:

  • Implausible SO and passive sentences yielded few nonliteral interpretations.
  • Implausible OS sentences elicited many nonliteral interpretations, regardless of verb type crossed.
  • Word exchanges were considered for function words (same category) but not nouns in yes-no questions, especially when implausible sentences were rare.
  • Noun exchanges were frequent when explicitly asked to correct sentences.

Conclusions:

  • Comprehenders utilize word exchanges to repair sentence meaning, but this strategy is constrained by task demands and word type.
  • The interpretation of implausible sentences depends on whether the task involves implicit repair (yes-no questions) or explicit correction.
  • Task-specific prior probabilities assigned to implausible sentences likely explain the differing results between yes-no questions and explicit corrections.