P3, Decision, and Gestalt Circle: Towards Understanding the Function of the P3b Component of the Event-Related EEG Potential as a Bridge Between Perception and Action

P3、决策和格式塔环：了解事件相关脑电图电位的 P3b 成分作为感知和行动之间桥梁的功能

• 批准号: 250692089
• 负责人: Professor Dr. Rolf Verleger (†)
• 金额: --
• 依托单位: Klinik für Neurologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/250692089?language=en
• 关键词: P3; Decision; Gestalt; Circle; Towards

The P3 complex of fronto-central P3a and parietal P3b is among the most conspicuous components of the human EEG potential as may be recorded from the scalp. Yet, even after hundreds of studies, the role played by the cortical activation measured as P3b is still not well understood. Classical assumptions are that P3b indicates updating of working memory and is affected by perceptual parameters only, rather than by parameters of behavioral responses. Though falsified since long, these assumptions have still not been replaced by better suggestions. A more recent view holds that P3b is related to the process of decision about what to do in response to perceived stimuli. But the exact nature of this relationship has remained unclear.This project is designed to take this discussion further, above all by scrutinizing the long-neglected relation between P3b and stimulus-response-links. Our recent preliminary studies have led to this working hypothesis: P3b reflects activation of an existing stimulus-response link. P3b will be the larger, the stronger is this stimulus-response link and the less it has presently been primed.The proposed experiments will test and refine this hypothesis through studying effects exerted on P3b by decoupling responses from perception. This will be done in modifications of the two basic paradigms used for measuring P3: the oddball task and the prediction of events. New data-analytic methods will be applied.The final aim is to arrive at a detailed, evidence-based theory of P3b. It is hoped that, by understanding P3b, the integrative cognitive function reflected by P3b, tying perception and action together, will be better understood as well.

额中央P3 a和顶叶P3 b的P3复合体是人类EEG电位的最显著的组成部分之一，可以从头皮记录。然而，即使经过数百项研究，P3 b所起的作用仍然没有得到很好的理解。经典的假设是P3 b指示工作记忆的更新，并且仅受知觉参数的影响，而不受行为反应参数的影响。虽然这些假设早已被证伪，但仍然没有被更好的建议所取代。最近的观点认为，P3 b与对感知刺激做出反应的决定过程有关。但是这种关系的确切性质仍然不清楚，这个项目旨在进一步讨论，首先是通过仔细检查长期被忽视的P3 b和刺激反应联系之间的关系。我们最近的初步研究导致了这个工作假设：P3 b反映了现有刺激-反应联系的激活。P3 b越大，刺激-反应联系越强，目前被激发的越少。拟议的实验将通过研究将反应与感知脱钩对P3 b的影响来验证和完善这一假设。这将在用于测量P3的两个基本范例的修改中完成：古怪任务和事件预测。新的数据分析方法将被应用。最终的目标是达成一个详细的，以证据为基础的P3 b理论。希望通过对P3 b的理解，能够更好地理解P3 b所反映的将感知和行动联系在一起的整合认知功能。

项目成果

Is P3 a strategic or a tactical component? Relationships of P3 sub-components to response times in oddball tasks with go, no-go and choice responses

• DOI: 10.1016/j.neuroimage.2016.08.049
• 发表时间: 2016-12
• 期刊: NeuroImage
• 影响因子: 5.7
• 作者: R. Verleger;Nils Grauhan;K. Śmigasiewicz

Biased odds for heads or tails: Outcome-evoked P3 depends on frequencies of guesses.

• DOI: 10.1111/psyp.12440
• 发表时间: 2015-08
• 期刊: Psychophysiology
• 影响因子: 3.7
• 作者: R. Verleger;Dariusz Asanowicz;Lucas Werner;K. Śmigasiewicz

Go and no-go P3 with rare and frequent stimuli in oddball tasks: A study comparing key-pressing with counting.

• DOI: 10.1016/j.ijpsycho.2016.11.009
• 发表时间: 2016-12
• 期刊: International journal of psychophysiology : official journal of the International Organization of Psychophysiology
• 作者: R. Verleger;Nils Grauhan;K. Śmigasiewicz

The oddball effect on P3 disappears when feature relevance or feature-response mappings are unknown

当特征相关性或特征响应映射未知时，P3 上的奇怪效应就会消失

• DOI: 10.1007/s00221-018-5334-z
• 发表时间: 2018
• 期刊: Experimental Brain Research
• 影响因子: 2
• 作者: Verleger;Sassenhagen;Śmigasiewicz
• 通讯作者: Śmigasiewicz

Testing the stimulus-to-response bridging function of the oddball-P3 by delayed response signals and residue iteration decomposition (RIDE)

• DOI: 10.1016/j.neuroimage.2014.06.036
• 发表时间: 2014-10
• 期刊: NeuroImage
• 影响因子: 5.7
• 作者: R. Verleger;Marvin F. Metzner;G. Ouyang;K. Śmigasiewicz;Changsong Zhou