Shades of confusion: Lexical uncertainty modulates ad hoc coordination in an interactive communication task. (arXiv:2105.06546v2 [cs.CL] UPDATED)

There is substantial variability in the expectations that communication
partners bring into interactions, creating the potential for misunderstandings.
To directly probe these gaps and our ability to overcome them, we propose a
communication task based on color-concept associations. In Experiment 1, we
establish several key properties of the mental representations of these
expectations, or lexical priors, based on recent probabilistic theories.
Associations are more variable for abstract concepts, variability is
represented as uncertainty within each individual, and uncertainty enables
accurate …

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