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  • 主动控制感在大脑表征中的时空标记

    Subjects: Psychology >> Social Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》

    Abstract: Sense of agency (SOA) refers to the feeling of controlling one's own actions and events in the external world through voluntary actions. Over the past two decades, SOA has increasingly attracted attention from researchers, and its cognitive neural mechanism is still a cutting-edge scientific problem in this field. There are two ways to measure SOA: explicit measurement (i.e., the explicit judgements of agency reported by individuals) and implicit measurement (i.e., sensory perception difference). Both the temporal binding effect and the sensory attenuation effect can be used as implicit measures for SOA. Intention of action and sensory feedback are two core components constituting the SOA. Intention of action is a conscious experience of determining or planning to initiate an action. Extinction and termination of intention can prospectively affect SOA. The valence of action outcome, the causal relationship between an action and its outcome, and the characteristics of the outcome may retrospectively affect the sense of agency. According to the Comparator Model, a copy of the action command contained in the subjective intention predicts the outcome before action. When comparing the predicted sensory outcome with the actual feedback of the action, the prediction error is zero, generating SOA. Evidence from cognitive neuroscience suggests that intention may be closely related to the activities in the supplementary and pre-supplementary motor areas, and the action outcome may be related to the activities of the posterior parietal cortex. This project will focus on the neural substrates underlying SOA, and explore the prospective way of intention and the retrospective way of outcome exerting on SOA by manipulating different attributes of two core components (i.e., subjective intention and action outcome). The magnetoencephalography technology, which is of high temporal and spatial resolution, is employed to extract the time-space characteristics of SOA at the fronto-parietal network in both the time windows of action-outcome and after-outcome. Elucidating the neural mechanism of SOA will contribute to our understanding of the generation and aftereffects of human actions, thus providing implications for demarcating behavioral responsibilities in moral and legal settings, and for diagnosing related mental diseases.

  • The spatiotemporal markers for the sense of agency in the human brain

    Subjects: Psychology >> Cognitive Psychology submitted time 2021-05-16

    Abstract: Sense of agency (SoA) refers to the feeling of controlling one's own actions and, through them, events in the external world when performing voluntary actions. Intention of action and sensory feedback are two core components that constitute the sense of agency. However, the cognitive neural mechanism underlying the influence of these two components on SoA is unclear. We propose to explore the feedforward effect of action intention and the feedback effect of sensory feedback on SoA. The magnetoencephalography technology, which is of high temporal and spatial resolution, is employed to extract the time-space characteristics of sense of agency at the fronto-parietal network in both the time windows of action-outcome and after-outcome. The elucidation of this cognitive neural mechanism of SoA will contribute to our understanding of the generation and aftereffects of human actions; furthermore, it will provide implications for the demarcation of behavioral responsibilities in moral and legal settings, and for the clinical diagnoses of related mental diseases. "

  • The influence of social interaction situations on the sense of agency

    Subjects: Psychology >> Cognitive Psychology submitted time 2020-11-30

    Abstract: The sense of agency is the experience of controlling one's own motor acts and, through these acts, controlling the course of external events in the interaction with the environment. It can be extended to the actions of other agents and the outcomes caused by their actions in social interaction. A large number of studies in the context of social interaction have shown that the sense of agency is influenced by social interaction situations such as observation, competition, cooperation and hierarchical interaction. Relevant neural mechanism studies have demonstrated that the fronto-parietal network, including primary motor cortex, angular gyrus, insula, temporo-parietal junction, medial prefrontal cortex, and precuneus, plays an important role in the sense of agency in social interaction. Future researches need to further explore the cognitive and neural mechanisms underlying the effects of social interaction situations on sense of agency, investigate the influences of multimodal stimuli on sense of agency in social interaction, and consider the modulation effects of sense of agency on cognitive processes and behavioral responses in social interaction. "

  • Sense of Agency Based on Action and Causation: The Mechanism of Intentional Binding Effect for Voluntary Action

    Subjects: Psychology >> Cognitive Psychology submitted time 2018-12-17

    Abstract: The intentional binding effect refers to subjective compression in time between a voluntary action and its delayed outcome. Sense of agency based on action and causation are two explanations for this effect. We first introduced the mechanisms underlying sense of agency related to action and sense of agency related to causation to interpret the intentional binding effect through providing corresponding evidence from both behavioral and neural perspectives. Meanwhile, we discussed the relationship between these two explanations for the intentional binding effect. We provide two perspectives regarding the relationship between the two factors to explain intentional binding effect.