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Abstract

Before the evolution of languages as public conventional communication systems, pre-humans had somewhat complex private mental schemes for representing the external world. What is known about human and some animal vision suggests that proposition-like cognitive structures existed for the mental representation of perceived scenes before the advent of complex language. The structures traditionally adopted by formal Logic can be modified to conform to known constraints on the visual representation of scenes. While this modification slightly reduces the expressive power of representations (in that the meanings of some complex sentences cannot naturally be represented), it provides a unified, ontologically parsimonious, primitive notation for cognitive representations, suitable for later recruitment by complex syntactic language. The most basic semantic elements later mapped onto sentences are all present in the prelinguistic mental representation, which reflects the workings of the visual attention system

@inproceedings{hurford06ProtoProposition,
  author={J. Hurford},
  title={Proto-propositions},
  year={2006},
  pages={131-138},
  booktitle={Proceedings of the 6th International Conference on the Evolution of Language},
  url={http://www.isrl.uiuc.edu/~amag/langev/paper/hurford06ProtoProposition.html}
}

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