Neural mechanisms supporting emotional and self-referential information processing and encoding in older and younger adults.
Neural mechanisms supporting emotional and self-referential information processing and encoding in older and younger adults.
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DOI：
10.1093/scan/nsaa052
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发表时间：
2020-06-23
影响因子：
4.2
通讯作者：
Kensinger EA
中科院分区：
文献类型：
--
作者：
Daley RT;Bowen HJ;Fields EC;Parisi KR;Gutchess A;Kensinger EA
情绪和自我参照信息都可以增强记忆，但它们是否通过成年人一生中的共同机制来增强记忆仍然没有得到充分的研究。为了解决这一差距，目前的研究直接比较，在相同的功能磁共振成像范式，在老年人和年轻人的情绪显着和自我参照信息的编码。行为结果复制了典型的模式，更好的记忆比中性信息的情感和自我参考比非自我参考的材料，这些记忆增强的年轻人和老年人。在神经活动中，年轻人和老年人表现出类似的情绪调节，但自我参照处理影响神经募集的方式存在很大的年龄差异。与我们的假设相反，我们发现几乎没有证据表明参与情绪和自我参照处理的神经机制存在重叠。这些结果表明，正如在认知领域，老年人可以表现出类似的性能，年轻人在社会情感领域，即使这两个年龄组从事不同的神经机制。这些发现表明，未来的研究需要深入研究支持老年人对社会情感材料的记忆益处的神经机制。
Emotion and self-referential information can both enhance memory, but whether they do so via common mechanisms across the adult lifespan remains underexplored. To address this gap, the current study directly compared, within the same fMRI paradigm, the encoding of emotionally salient and self-referential information in older adults and younger adults. Behavioral results replicated the typical patterns of better memory for emotional than neutral information and for self-referential than non-self-referential materials; these memory enhancements were present for younger and older adults. In neural activity, young and older adults showed similar modulation by emotion, but there were substantial age differences in the way self-referential processing affected neural recruitment. Contrary to our hypothesis, we found little evidence for overlap in the neural mechanisms engaged for emotional and self-referential processing. These results reveal that—just as in cognitive domains—older adults can show similar performance to younger adults in socioemotional domains even though the two age groups engage distinct neural mechanisms. These findings demonstrate the need for future research delving into the neural mechanisms supporting older adults’ memory benefits for socioemotional material.
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