Risk and risk prediction error signals in anterior insula
BRAIN STRUCTURE & FUNCTION | SPRINGER HEIDELBERG | Published : 2010
Most accounts of the function of anterior insula in the human brain refer to concepts that are difficult to formalize, such as feelings and awareness. The discovery of signals that reflect risk assessment and risk learning, however, opens the door to formal analysis. Hitherto, activations have been correlated with objective versions of risk and risk prediction error, but subjective versions (influenced by pessimism/optimism or risk aversion/tolerance) exist. Activation in closely related cortical structures has been found to be both objective (anterior cingulate cortex) and subjective (inferior frontal gyrus). For this quantitative analysis of uncertainty-induced neuronal activation to furth..View full abstract
Awarded by US National Science Foundation
Supported by Grants from the US National Science Foundation (SES-0527491) and the Swiss Finance Institute. The manuscript benefited from discussions with Kerstin Preuschoff and Tania Singer, and comments from two referees and the editor, although the usual disclaimer applies.