The evolutionary and genetic origins of consciousness in the Cambrian Period over 500 million years ago

@article{Feinberg2013TheEA,
  title={The evolutionary and genetic origins of consciousness in the Cambrian Period over 500 million years ago},
  author={Todd E. Feinberg and Jon Mallatt},
  journal={Frontiers in Psychology},
  year={2013},
  volume={4}
}
Vertebrates evolved in the Cambrian Period before 520 million years ago, but we do not know when or how consciousness arose in the history of the vertebrate brain. Here we propose multiple levels of isomorphic or somatotopic neural representations as an objective marker for sensory consciousness. All extant vertebrates have these, so we deduce that consciousness extends back to the group's origin. The first conscious sense may have been vision. Then vision, coupled with additional sensory… Expand
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