Contextual modulation of value signals in reward and punishment learning

@inproceedings{Palminteri2015ContextualMO,
  title={Contextual modulation of value signals in reward and punishment learning},
  author={Stefano Palminteri and Mehdi Khamassi and M. Joffily and Giorgio Coricelli},
  booktitle={Nature communications},
  year={2015}
}
Compared with reward seeking, punishment avoidance learning is less clearly understood at both the computational and neurobiological levels. Here we demonstrate, using computational modelling and fMRI in humans, that learning option values in a relative--context-dependent--scale offers a simple computational solution for avoidance learning. The context (or state) value sets the reference point to which an outcome should be compared before updating the option value. Consequently, in contexts… CONTINUE READING
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