Attention, Uncertainty, and Free-Energy

  title={Attention, Uncertainty, and Free-Energy},
  author={Harriet Ruth Feldman and Karl J. Friston},
  booktitle={Front. Hum. Neurosci.},
We suggested recently that attention can be understood as inferring the level of uncertainty or precision during hierarchical perception. In this paper, we try to substantiate this claim using neuronal simulations of directed spatial attention and biased competition. These simulations assume that neuronal activity encodes a probabilistic representation of the world that optimizes free-energy in a Bayesian fashion. Because free-energy bounds surprise or the (negative) log-evidence for internal… CONTINUE READING
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