Can older adults resist the positivity effect in neural responding? The impact of verbal framing on event-related brain potentials elicited by emotional images.
Can older adults resist the positivity effect in neural responding? The impact of verbal framing on event-related brain potentials elicited by emotional images.
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DOI：
10.1037/a0032771
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发表时间：
2013-10
期刊：
影响因子：
4.2
通讯作者：
Kisley, Michael A.
中科院分区：
文献类型：
--
作者：
Rehmert, Andrea E.;Kisley, Michael A.
老年人表现出回避负面信息，大概是为了获得更大的情感满足。了解回避负面信息是自愿的、有动机的选择，还是非自愿的、自动的反应对于区分很重要，因为决策通常涉及情感因素。通过使用情绪框架事件相关电位（ERP）范式，本研究调查了老年人是否可以通过评估反应选项的言语重构来改变对负面刺激的神经反应。记录了 50 名老年人和 50 名年轻人的晚期积极电位 (LPP) 反应，同时参与者将情绪图像分类为两种框架条件之一：积极（“或多或少积极”）或消极（“或多或少消极”）。据推测，老年人将能够克服在负面框架条件下下调对负面刺激的神经反应的假定倾向，从而导致负面图像的 LPP 波振幅更大。预计年轻人也会有类似的效果，但对于正价图像，与负框架条件相比，在正框架条件下 LPP 反应会增加。总体而言，年轻人的 LPP 波振幅受到框架条件的调节，包括积极框架中消极偏差的减少。尽管任务相关行为支持老年人能够成功地适应消极框架条件，但老年人的神经反应并未受到显着调节。
Older adults have demonstrated an avoidance of negative information presumably with a goal of greater emotional satisfaction. Understanding whether avoidance of negative information is a voluntary, motivated choice, or an involuntary, automatic response will be important to differentiate, as decision-making often involves emotional factors. With the use of an emotional framing event-related potential (ERP) paradigm, the present study investigated whether older adults could alter neural responses to negative stimuli through verbal reframing of evaluative response options. The late-positive potential (LPP) response of 50 older adults and 50 younger adults was recorded while participants categorized emotional images in one of two framing conditions: positive (“more or less positive”) or negative (“more or less negative”). It was hypothesized that older adults would be able to overcome a presumed tendency to down-regulate neural responding to negative stimuli in the negative framing condition thus leading to larger LPP wave amplitudes to negative images. A similar effect was predicted for younger adults but for positively valenced images such that LPP responses would be increased in the positive framing condition compared to the negative framing condition. Overall, younger adults' LPP wave amplitudes were modulated by framing condition, including a reduction in the negativity bias in the positive frame. Older adults' neural responses were not significantly modulated even though task-related behavior supported the notion that older adults were able to successfully adopt the negative framing condition.
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作者：
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发表时间：
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影响因子：
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