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Executive function moderates the intention-behavior link for physical activity and dietary behavior

机译：执行功能可减轻体育锻炼和饮食行为的意向行为

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Dominant theories of health behavior posit that social-cognitive and conative variables are sufficient to explain health behavior tendencies. The current studies challenge this assumption in two ways: (1) by demonstrating that unique variance in health protective behavior is predictable by knowing about individual differences in executive functioning, and (2) by demonstrating that executive function moderates the association between intention and behavior. In Studies 1 and 2, participants completed a computer-based task of executive function (Go/NoGo task) and articulated 1-week behavioral intentions for physical activity (Study 1) and dietary behavior (Study 2). Hierarchical regression analyses revealed that executive function predicts unique variance in both behaviors, and strongly moderates the association between behavioral intention and behavioral performance. Together behavioral intention and executive function explain more variance in health protective behavior than 'rational actor' models that have been widely adopted and disseminated.
机译：健康行为的主导理论认为，社会认知和习惯变量足以解释健康行为倾向。当前的研究通过两种方式对这一假设提出挑战：（1）通过证明执行功能的个体差异可以预测健康保护行为的独特差异，以及（2）通过证明执行功能可以缓解意图与行为之间的联系。在研究1和2中，参与者完成了一项基于计算机的执行功能任务（Go / NoGo任务），并明确了为期1周的身体活动（研究1）和饮食行为（研究2）行为意向。层次回归分析显示，执行功能可预测两种行为的独特差异，并强烈缓解行为意图与行为绩效之间的关联。与被广泛采用和传播的“理性行为者”模型相比，行为意图和执行功能共同说明了健康保护行为的更多差异。

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