Publications by authors named "Romane Cecchi"
Article Synopsis
- Neural activity in the ventromedial prefrontal cortex (vmPFC) and anterior insula (aIns) is linked to economic decision-making and confidence, but their causal relationships were previously unclear.
- By using intracranial electrical stimulation data from epilepsy patients engaged in an economic choice task, researchers found that stimulation effects on decision-making varied based on the specific brain region targeted along a dorso-ventral axis.
- Stimulation of the ventral aIns decreased risk-taking by heightening sensitivity to losses, while stimulation in the dorsal aIns and ventral vmPFC increased risk-taking by diminishing loss sensitivity; additionally, aIns stimulation lowered participants' confidence regardless of the precise area stimulated.
Identifying factors whose fluctuations are associated with choice inconsistency is a major issue for rational decision theory. Here, we investigated the neuro-computational mechanisms through which mood fluctuations may bias human choice behavior. Intracerebral EEG data were collected in a large group of subjects (n=30) while they were performing interleaved quiz and choice tasks that were designed to examine how a series of unrelated feedbacks affect decisions between safe and risky options.
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