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Tuning the Brake While Raising the Stake: Network Dynamics during Sequential Decision-Making.

David MederBrian Numelin HaagensenOliver HulmeTobias MorvilleSofie GelskovDamian Marc HerzBeata DiomsinaMark Schram ChristensenKristoffer Hougaard MadsenHartwig Roman Siebner
Published in: The Journal of neuroscience : the official journal of the Society for Neuroscience (2017)
Using a paradigm where subjects experienced increasing potential rewards coupled with increasing risk, this study addressed two unresolved questions in the field of decision-making: First, we investigated an "inhibitory" network of regions that has so far been investigated with externally cued action inhibition. In this study, we show that the dynamics in this network under increasingly risky decisions are predictive of subjects' risk attitudes. Second, we contribute to a currently ongoing debate about the anterior cingulate cortex's role in sequential foraging decisions by showing that its activity is related to making nondefault choices rather than to choice uncertainty.
Keyphrases
  • decision making
  • functional connectivity
  • mental health