相关实验视频

Updated: Jun 4, 2025

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

刺激腹中前额叶皮质和感知情感面孔的刺激. 一个有效的连接分析

Miroslaw Wyczesany¹, Anna Leśniewska¹, Constantin Winker²

¹Institute of Psychology, Jagiellonian University, Kraków, Poland.

Biological psychology

|January 1, 2025

概括

激发性刺激危险的中腹前额皮质 (pgVM) 改变了大脑网络连接. 这种大脑刺激通过调节大脑区域之间的功能联系来影响情感面部感知.

科学领域:

神经科学是一个神经科学.
认知神经科学认知神经科学
情感神经科学是一种神经科学.

背景情况:

腹中前额叶皮层 (vmPFC) 对于处理情绪,奖励和评估至关重要.
特别是危险的vmPFC (pgVM) 参与调解刺激的食欲价值.
以前的研究表明,pgVM的刺激性跨直流刺激 (tDCS) 将情感面部感知偏向于积极的价值.

研究的目的:

为了研究pgVM刺激后大脑网络内的功能连接性变化.
了解pgVM刺激如何影响情感面部感知期间的信息流.

主要方法:

从一项涉及pgVM激发性和抑制性tDCS的先前研究中重新分析MEG数据.
应用定向传输函数 (DTF) 方法来估计基于源的有效连接.
在被动观看情感 (快乐/恐惧) 面孔时分析MEG时代.

主要成果:

观察到显著的会话效应,连接模式在激发性和抑制性tDCS之间有所不同.
刺激性pgVM刺激导致pgVM向皮质区域的外流增加,特别是在右半球.
发现右源活动的减少和视觉信息传输到网络节点的增加.

结论:

pgVM刺激会引起广泛的网络效应,影响注意力,视觉处理和情绪调节领域.
通过对pgVM进行有针对性的刺激,大脑网络中的功能连接会被动态改变.
这些发现突出了pgVM在更广泛的神经网络中的作用,该神经网络控制着情绪处理和调节.

关键词:

连接性的连接性这是一个EEGEEGEEGEEGEEGEEGEEG.这是TDCS的TDCS.风中前额叶皮质的前额叶皮质.

更多相关视频

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Published on: June 20, 2012

Using Facial Electromyography to Assess Facial Muscle Reactions to Experienced and Observed Affective Touch in Humans

Using Facial Electromyography to Assess Facial Muscle Reactions to Experienced and Observed Affective Touch in Humans

Published on: March 15, 2019

相关概念视频

Association Areas of the Cortex

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...