Human beings can interact with environment through voluntary action, so as to adapt and change the environment. In this process, people can not only perceive the intention of voluntary actions, but also perceive the results caused by actions, and experience the changes to the external environment. This kind of conscious experience is called sense of agency. In the process of voluntary action, people will inevitably make mistakes, including action execution errors and action outcome errors. Previous studies have found that action errors can reduce sense of agency. In this study, we used behavioral experiments and cognitive neuroscience methods to investigate the effects of action execution errors and action outcome errors to sense of agency, and the differences in brain activation and time process.
In study 1, we will use behavior experiment and ERP experiment to investigate the effect of action execution errors on sense of agency. Experiment 1 and Experiment 2 used Libet clock paradigm to investigate the effect of action execution errors on action binding and outcome binding respectively.
In study 2, we will use behavior experiment and ERP experiment o investigate the influence of action outcome errors on sense of agency. In Experiment 3 and 4, the Libet clock paradigm was used to investigate the effect of action outcome errors on action binding and outcome binding.
The main results in our study as followings:
1. The action execution error condition produced a greater amount of action compression compared to the action execution correct condition. The action result correct condition produces a greater amount of result compression than the action result error condition.
2. The difference in intentional binding of action execution right/wrong condition occurred after action execution, and ERPs results showed that in the action execution right condition, a larger positive slow wave appeared in the parietal lobe at 190 ms after action execution. The difference in the time compression effect of the action result correct/wrong condition occurred after the action was presented, and the ERPs results showed that the frontal-parietal P200, N2, and P300 amplitudes were larger at 190 ms after the result presentation in the action result correct condition.
By exploring the effects of action execution errors and action outcome errors on the action-result binding effect, this study can enrich the cognitive neural mechanism about sense of agency, and help to understand the internal mechanism of action binding and outcome binding influencing sense of agency.
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