Neural activity, neural connectivity, and the processing of emotionally valenced information in older adults: links with life satisfaction.
Neural activity, neural connectivity, and the processing of emotionally valenced information in older adults: links with life satisfaction.
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DOI：
10.3758/s13415-011-0039-9
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发表时间：
2011-09
期刊：
影响因子：
--
通讯作者：
Schulz MS
中科院分区：
文献类型：
--
作者：
Waldinger RJ;Kensinger EA;Schulz MS
这项研究探讨了晚年幸福感的差异是否与老年人编码情感信息的方式有关。我们使用功能磁共振成像技术对 39 名生活满意度不同的老年人进行研究，研究了观看正面和负面图像如何影响情绪处理网络的激活和连接。与消极图像相比，参与者更积极地参与该网络中的大多数区域，但在前额皮层中，这种影响受到生活满意度的调节，满意度较高的个体在处理积极图像时表现出较低的活动水平。与消极图像相比，满意度高的参与者在观看积极图像时表现出网络区域之间更强的相关性，特别是杏仁核和其他情绪处理区域之间的相关性。满意度低的参与者没有表现出效价效应。研究结果表明，晚年满意度与情绪处理区域在处理有价信息时的参与和连接方式有关。神经募集与晚年福祉之间联系的首次证明表明，神经网络激活和连接的差异可能解释了一些老年人对积极信息的优先编码。
This study examines whether differences in late-life well-being are linked to how older adults encode emotionally-valenced information. Using fMRI with 39 older adults varying in life satisfaction, we examined how viewing positive and negative images affected activation and connectivity of an emotion-processing network. Participants engaged most regions within this network more robustly for positive than for negative images, but within the PFC this effect was moderated by life satisfaction, with individuals higher in satisfaction showing lower levels of activity during the processing of positive images. Participants high in satisfaction showed stronger correlations among network regions – particularly between the amygdala and other emotion processing regions – when viewing positive as compared to negative images. Participants low in satisfaction showed no valence effect. Findings suggest that late-life satisfaction is linked with how emotion-processing regions are engaged and connected during processing of valenced information. This first demonstration of a link between neural recruitment and late-life well-being suggests that differences in neural network activation and connectivity may account for the preferential encoding of positive information seen in some older adults.
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