前额叶皮质在隐式和显式的面部情绪处理中具有差异性:一项fNIRS研究
1Department of Psychology, The Education University of Hong Kong, Hong Kong, China; University Research Facility in Behavioral and Systems Neuroscience, The Hong Kong Polytechnic University, Hong Kong, China.
Biological psychology
|June 19, 2023
概括
前额叶皮层 (PFC) 在面部情绪识别过程中显示出不同的激活模式. 功能近红外光谱 (fNIRS) 在明确的情感任务中显示了PFC中较大的氧血球蛋白 (HbO) 变化,而不是隐含的任务.
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
- 心理生理学 心理生理学
背景情况:
- 前额叶皮层 (PFC) 参与面部情绪处理,但其在隐式与显式任务中的具体作用尚未完全理解.
- 功能近红外光谱 (fNIRS) 测量血液动力学反应 (氧血球/HbO和脱氧血球/HbR),但其应用于面部情绪处理需要进一步阐明.
- 了解这些差异性作用对于推进认知神经科学和开发有针对性的干预措施至关重要.
研究的目的:
- 通过使用fNIRS来研究和比较隐式和显式面部情绪处理期间前额叶皮层 (PFC) 激活.
- 在这些任务期间检查PFC中氧血球蛋白 (HbO) 和脱氧血球蛋白 (HbR) 度的变化.
- 在面部情绪处理的背景下,评估fNIRS测量的测试-重新测试可靠性.
主要方法:
- 40名年轻人执行了明确的 (情感歧视) 和隐含的 (年龄歧视) 面部匹配任务.
- 在两个单独的会议期间,使用功能近红外光谱 (fNIRS) 测量了前额叶皮层 (PFC) 激活.
- 行为数据和血液动力学反应 (HbO,HbR) 被记录并分析任务差异和可靠性.
主要成果:
- 在隐式和显式面部情感任务中,PFC表现出增加的HbO和/或减少的HbR.
- 与隐式任务相比,在明确任务期间观察到的PFC HbO变化明显更大.
- 虽然会话间的HbO变化减少了,但隐式和显式任务激活之间的区别在组级保持一致.
结论:
- PFC在面部表情识别中发挥着特定的作用,在隐式和显式处理中有不同的参与.
- 在PFC氧血球蛋白 (HbO) 中的变化可以可靠地捕捉到这些在群体层面上的差异性作用.
- fNIRS是探索面部情绪识别神经机制的一个有希望的工具,尽管个体可靠性的局限性.
相关概念视频
Association Areas of the Cortex
5.6K
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,...
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,...
5.6K
Facial Feedback Hypothesis
196
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...
196


