Anderson Brian A
Psychological & Brain Sciences, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD, 21218-2686, USA,
Psychon Bull Rev. 2015 Jun;22(3):750-6. doi: 10.3758/s13423-014-0724-0.
Attention is automatically drawn to stimulus features previously associated with reward, a phenomenon referred to as value-driven attentional capture. To date, value-driven attentional capture has been studied exclusively by manipulating stimulus-reward contingencies in an experimental setting. Although practical and intuitively appealing, this approach poses theoretical challenges to understanding the broader impact of reward on attention in everyday life. These challenges arise from the fact that associative learning between a given visual feature and reward is not limited to the context of an experiment, yet such extra-experimental learning is completely ignored in studies of value-driven attention. How is it, then, that experimentally established reward associations even influence attention, seemingly overshadowing any prior learning about particular features and rewards? And how do the effects of this experimental learning persist over long periods of time, in spite of all the intervening experiences outside of the lab that might interfere with the learning? One potential answer to these questions is that value-driven attention is context specific, such that different contexts evoke different value priors that the attention system uses to assign priority. In the present study, I directly tested this hypothesis. The results show that the same stimulus feature either does or does not capture attention, depending on whether it has been rewarded specifically in the context within which it appears. The findings provide insight into how multiple reward structures can efficiently guide attention with minimal interference.
注意力会自动被吸引到先前与奖励相关联的刺激特征上,这种现象被称为价值驱动的注意力捕获。迄今为止,价值驱动的注意力捕获仅通过在实验环境中操纵刺激-奖励的偶然性来进行研究。尽管这种方法实用且直观,但它在理解奖励对日常生活中注意力的更广泛影响方面提出了理论挑战。这些挑战源于这样一个事实,即给定视觉特征与奖励之间的关联学习并不局限于实验环境,但在价值驱动注意力的研究中,这种实验外的学习完全被忽视了。那么,实验建立的奖励关联是如何影响注意力的呢?似乎它掩盖了任何先前关于特定特征和奖励的学习。而且,尽管实验室之外所有可能干扰学习的中间经历存在,这种实验学习的效果是如何长时间持续的呢?这些问题的一个潜在答案是,价值驱动的注意力是特定于情境的,不同的情境会唤起注意力系统用于分配优先级的不同价值先验。在本研究中,我直接检验了这一假设。结果表明,相同的刺激特征是否会捕获注意力,取决于它在出现的情境中是否被特别奖励。这些发现为多种奖励结构如何以最小干扰有效引导注意力提供了见解。