Neuroscientists and psychologists have been trying for decades to better understand how humans make decisions, in the hope to devise more effective interventions to promote healthy and beneficial lifestyle choices. Two brain regions that have been linked to decision-making are the orbitofrontal cortex (OFC) and the anterior cingulate cortex (ACC).
Researchers at University of California, Berkeley , have been conducting extensive research focusing on these two areas of the brain and exploring their involvement inthrough which the brain prepares to make choices.
In their previous works, Wallis and her colleagues unveiled a mechanism through which OFC neurons represent the value of choices that monkeys are considering at a given time, continuously bouncing or flipping between these different choices. However, they found that this flip-flopping in the OFC appeared to continue even after a monkey had made a choice.
The experiments carried out by Wallis and her colleagues ultimately allowed them to shed further light on the processes through which the OFC and ACC take part in decision-making. Specifically, the team found that the flip-flopping between different choice representations in the OFC also altered signals in the ACC that were related to the choice itself.
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