Prefrontal cortex and dynamic categorization tasks: representational organization and neuromodulatory control.

@article{OReilly2002PrefrontalCA,
  title={Prefrontal cortex and dynamic categorization tasks: representational organization and neuromodulatory control.},
  author={Randall C. O'Reilly and David C. Noelle and Todd S. Braver and Jonathan D. Cohen},
  journal={Cerebral cortex},
  year={2002},
  volume={12 3},
  pages={246-57}
}
We present a computational model of the intradimensional/ extradimensional (ID/ED) task (a variant of the Wisconsin card sorting task) that simulates the performance of intact and frontally lesioned monkeys on three different kinds of rule changes (Dias et al., 1997, J Neurosci 17:9285-9297). Although Dias et al. interpret the lesion data as supporting a model in which prefrontal cortex is organized into different processing functions, our model suggests an alternative account based on… CONTINUE READING
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