Cooper Nicole, Tompson Steve, O'Donnell Matthew Brook, Falk Emily B
Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA, USA.
J Media Psychol. 2015;27:93-109. doi: 10.1027/1864-1105/a000146. Epub 2015 Sep 15.
In this study, we combined approaches from media psychology and neuroscience to ask whether brain activity in response to online antismoking messages can predict smoking behavior change. In particular, we examined activity in subregions of the medial prefrontal cortex linked to self- and value-related processing, to test whether these neurocognitive processes play a role in message-consistent behavior change. We observed significant relationships between activity in both brain regions of interest and behavior change (such that higher activity predicted a larger reduction in smoking). Furthermore, activity in these brain regions predicted variance independent of traditional, theory-driven self-report metrics such as intention, self-efficacy, and risk perceptions. We propose that valuation is an additional cognitive process that should be investigated further as we search for a mechanistic explanation of the relationship between brain activity and media effects relevant to health behavior change.
在本研究中，我们结合了媒体心理学和神经科学的方法，以探讨大脑对在线反吸烟信息的反应活动是否能够预测吸烟行为的改变。具体而言，我们检查了内侧前额叶皮质与自我及价值相关加工有关的子区域的活动，以测试这些神经认知过程是否在与信息一致的行为改变中发挥作用。我们观察到两个感兴趣的脑区的活动与行为改变之间存在显著关系（即较高的活动水平预示着吸烟量的更大减少）。此外，这些脑区的活动所预测的变化独立于传统的、理论驱动的自我报告指标，如意向、自我效能感和风险认知。我们提出，评估是一个额外的认知过程，在我们寻求对与健康行为改变相关的大脑活动和媒体效应之间关系的机制性解释时，应进一步加以研究。
