Clarissa Baratin

Abstract Whether the brain encodes the subjective value of pleasant and unpleasant situations via a single integrated circuit or through distinct pathways remains unresolved. How such signals guide choice across contexts also remains unclear. To address these questions, we recorded intracerebral activity from participants who rated pleasant and unpleasant scenarios and then made binary choices across domains and frames.

Abstract The decision-making field has long attempted to understand the origins of human choice variability. A potential source of variability lies in spontaneous fluctuations of ongoing neural activity, which may influence behavior across several cognitive domains. Here, we developed a closed-loop intracranial brain-computer interface that detects transient fluctuations of broadband gamma activity (BGA, 70–150 Hz) to trigger stimulus presentations contingent on high or low neural states.