感知负载调节三角振荡和三角振荡在反价值编码过程中对奖励的贡献
Congcong Qi1,2, Jinming Zhu1,2, Lele Chen3
1Faculty of Psychology, Shandong Normal University, Jinan, China.
Frontiers in psychology
|September 2, 2025
概括
反处理涉及奖励积极性 (RewP) 和P300 ERP,以及三角形和度振荡. 感知负载影响的三角形
科学领域:
- 神经科学
- 认知科学
- 电生理学
背景情况:
- 反处理包括与事件相关的潜力 (ERP),如RewP和P300,以及振荡活动 (delta,theta).
- 感知负载对反相关振荡的影响尚不清楚.
- 了解这些调制对于解读反评估的神经机制至关重要.
研究的目的:
- 调查感知负载如何影响与反相关的ERP和振荡元件的价值效应.
- 分析振荡价值效应对ERP价值效应的贡献.
- 检查感知负载对这些贡献的调节作用.
主要方法:
- 在反刺激呈现时操纵感知负载.
- 测量脑电图 (EEG) 来记录ERP (RewP,P300) 和振荡 (delta,theta).
- 相关性和回归分析以评估不同负载条件下的ERP和振荡之间的关系.
主要成果:
- 积极的反产生了比负面的反更大的RewP和P300幅度,不受感知负载的影响.
- 负反引发了比正反更强的达活动,也不受负载的影响.
- 德尔塔振荡的价值效应由负荷调节;正反仅在低负荷下引起更大的德尔塔活动.
- RewP与P300相关,而delta和theta则没有.
- 在低负荷下预测Delta RewP;在高负荷下预测P300.
结论:
- 分别处理正反和负反.
- 感知负载特别调节正反处理及其神经相关.
- 在特定的负载条件下,感知负载会影响delta对RewP和theta对P300的贡献.
更多相关视频
09:26Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication
Published on: February 6, 2019
18.9K
05:22Dissociation of the Confounding Influences of Expectancy and Integrative Difficulty Residing in Anomalous Sentences in Event-related Potential Studies
Published on: May 9, 2019
5.4K
相关概念视频
Effects of feedback
698
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
698
Long-term Potentiation
2.9K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
Hebbian LTP
LTP can occur when...
2.9K
Facial Feedback Hypothesis
244
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
244
Feedback Inhibition
54.5K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
54.5K
Root Loci for Positive-Feedback Systems
158
The Hartley oscillator is a positive feedback system that sustains oscillations by feeding the output back to the input in phase, thereby reinforcing the signal. Positive feedback systems can be viewed as negative feedback systems with inverted feedback signals. In these systems, the root locus encompasses all points on the s-plane where the angle of the system transfer function equals 360 degrees.
The construction rules for the root locus in positive feedback systems are similar to those in...
The construction rules for the root locus in positive feedback systems are similar to those in...
158
Optimal Arousal Theory
296
The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
Inverted U-Shaped Performance Curve
The...
Inverted U-Shaped Performance Curve
The...
296
