“眼大肚子小”:食物趋近–回避偏向及其经典范式

“Bigger Eyes, Smaller Belly”: Food Approach-Avoidance Bias and the Classical Paradigm

随着社会发展,我国已有一半成年居民超重或肥胖,这严重影响着我国国民的身体健康。趋近–回避行为被认为是外显和内隐信息处理之间复杂交互作用的结果,除神经性厌食症患者外,大多数人对食物刺激均表现为趋近反应时快于回避反应时。目前,关于趋近–回避偏向的研究主要集中在西方国家中,为便于我国研究者了解和开展相关研究。本文将对趋近–回避偏向概念、理论基础、经典范式(趋近–回避任务,AAT)及研究现状进行介绍,并用趋近–回避偏向来解释“眼大肚子小”的现象,最后为未来研究方向提供了一些思路。

With the development of society, half of the adult residents in China are overweight or obese, which seriously affects the health of Chinese people. Approach-avoidance behavior is thought to be the result of a complex interaction between explicit and implicit information processing, with most people responding faster in approach to food stimuli than avoidance except in patients with anorexia nervosa. At present, the study on approach-avoidance bias is mainly concentrated in western countries, to facilitate the convenience of our researchers to understand and carry out related research. This paper will introduce the concept, heoretical basis, classical paradigm (approach-avoidance task, AAT) and research status of approach-avoidance bias, and use approach- avoidance bias to explain the phenomenon of “Bigger Eyes, Smaller Belly”, finally provides some ideas for the future research direction.