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There is doing with and without knowing, at any rate, and at any level

  • University of California Los Angeles Medical School


Ballard et al.'s is a plausible and useful model. Leaving aside some unnecessary constraints, the model would probably be valid through a wider gamut of interactions between the self and the environment than the authors envision.
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Everyone shares the irresistible conception that vision is one sense. We experience one coherent visual world and produce visually guided behavior to interact with that world. Extensive laboratory work, however, has shown this introspection to be in error: visual processing has several representations of space, coding different aspects of the information available from vision. The representations operate simultaneously, in parallel, in performing various visual functions.