The Computational Structure of Unintentional Meaning
- Mark Ho, Department of Psychology, Princeton University, Princeton, New Jersey, United States
- Joanna Korman, MITRE Corporation, Bedford, Massachusetts, United States
- Tom Griffiths, Department of Psychology, Princeton University, Princeton, New Jersey, United States
AbstractSpeech-acts can have literal meaning as well as pragmatic meaning, but these both involve consequences typically intended by a speaker. Speech-acts can also have unintentional meaning, in which what is conveyed goes above and beyond what was intended. Here, we present a Bayesian analysis of how, to a listener, the meaning of an utterance can significantly differ from a speaker’s intended meaning. Our model emphasizes how comprehending the intentional and unintentional meaning of speech-acts requires listeners to engage in sophisticated model-based perspective-taking and reasoning about the history of the state of the world, each other’s actions, and each other’s observations. To test our model, we have human participants make judgments about vignettes where speakers make utterances that could be interpreted as intentional insults or unintentional faux pas. In elucidating the mechanics of speech-acts with unintentional meanings, our account provides insight into how communication both functions and malfunctions.
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