Yan Jiaying, Feng Jia-Jia, Lai Tingting, Jia Lei, Wang Xiaoqing
Department of Psychology, School of Psychology, Zhejiang Normal University, Room 320, #17 Building, #688 Yingbin Rd, Jinhua City, 321004, People's Republic of China.
Intelligent Laboratory of Zhejiang Province in Mental Health and Crisis Intervention for Children and Adolescents, Jinhua, 321004, People's Republic of China.
Mem Cognit. 2025 May 30. doi: 10.3758/s13421-025-01735-8.
The attentional boost effect (ABE) refers to a phenomenon wherein heightened attention to target detection in dual-task paradigms enhances memory performance for target-associated items. While the standard ABE has been extensively investigated in individual settings with self-relevant targets, it remains unclear whether the ABE persists or modulates in dyadic interactions involving both self-relevant and partner-relevant targets. To address this gap, we employed a mixed experimental design using lexical materials. Three groups were recruited to perform a typical ABE test using the same stimuli, including a single-person group for the standard ABE test, a dyadic baseline group (consisting of one true participant and one confederate), and a dyadic experimental group (composed of two true participants). As results, we observed a standard ABE for self-relevant targets (characterized by significantly higher d-prime scores for self-target items compared with distractor items) among all three groups, with no significant differences between the groups. Moreover, both the dyadic baseline group and the dyadic experimental group exhibited a reversed ABE for partner-target items (characterized by significantly lower d-prime scores for partner-target items compared with distractor items). These findings not only validate the ABE triggered by self-targets but also present, for the first time, a reversed ABE driven by spontaneous co-representation of partner targets. Consequently, the self-referential and actor/agent co-representation mechanisms underlying the standard and reversed ABEs are discussed.
注意增强效应（ABE）指的是一种现象，即在双任务范式中，对目标检测的注意力增强会提高与目标相关项目的记忆表现。虽然标准的ABE已在涉及自我相关目标的个体环境中得到广泛研究，但在涉及自我相关和伙伴相关目标的二元互动中，ABE是否持续存在或发生调节尚不清楚。为了填补这一空白，我们采用了一种使用词汇材料的混合实验设计。招募了三组人员使用相同的刺激进行典型的ABE测试，包括用于标准ABE测试的单人组、二元基线组（由一名真实参与者和一名同谋组成）和二元实验组（由两名真实参与者组成）。结果，我们在所有三组中都观察到了针对自我相关目标的标准ABE（其特征是与干扰项相比，自我目标项目的d'分数显著更高），各组之间没有显著差异。此外，二元基线组和二元实验组对伙伴目标项目都表现出反向的ABE（其特征是与干扰项相比，伙伴目标项目的d'分数显著更低）。这些发现不仅验证了由自我目标触发的ABE，还首次呈现了由伙伴目标的自发共同表征驱动的反向ABE。因此，讨论了标准和反向ABE背后的自我参照和行动者/主体共同表征机制。
