Stopping Rules in Information Acquisition at Varying Probabilities and Consequences: an EEG Study


An experiment aiming to assess the use of stopping rules in information acquisition was performed. Participants were requested to make a decision in 24 financial scenarios with the possibility of buying information pieces. Behavioral and EEG data were recorded for analysis. Results showed that participants followed Bayesian calculations in order to determine a stop on information acquisition and decide. Moreover, the information acquisition strategies were consistent with prospect theory, in which participants will weigh information pieces differently and seek more or less information given different manipulations in scenario probability and consequences. EEG data suggest Slow Cortical Potentials at fronto-central electrodes.

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