Conference on Cognitive Computational Neuroscience

The neurocomputational basis of simple choice has been studied in humans and non-human primates (NHP). A comparison of this body of work shows some common findings, but also substantial differences across species. These could be due to cross-species differences on the underlying mechanisms, to differences on how the experiments are carried out in humans and animals, or both. Given the importance of reconciling these two bodies of work, we study human simple choices under overtraining conditions that resemble those in NHP experiments. Although the work is ongoing, results to-date suggest that overtraining shifts the neurocomputational basis of simple choice in the direction of NHP results, thus suggesting that the differences in existing findings are partially due to the fact that NHP data is typically collected after large amounts of training.