Sperduti Marco, Armougum Allan, Makowski Dominique, Blondé Philippe, Piolino Pascale
Paris Descartes University, Sorbonne Paris Cité, Institute of Psychology, Memory and Cognition Laboratory, Boulogne Billancourt, France.
INSERM, UMR S894, Center for Psychiatry and Neurosciences, Paris, France.
Exp Brain Res. 2017 Dec;235(12):3553-3560. doi: 10.1007/s00221-017-5081-6. Epub 2017 Sep 6.
Episodic memory (EM) is defined as a long-term memory system that stores information that can be retrieved along with details of the context of the original events (binding). Several studies have shown that manipulation of attention during encoding can impact subsequent memory performance. An influential model of attention distinguishes between three partially independent attentional networks: the alerting, the orienting and the executive or conflict resolution component. To date, the impact of the engagement of these sub-systems during encoding on item and relational context binding has not been investigated. Here, we developed a new task combining the Attentional Network Test and an incidental episodic memory encoding task to study this issue. We reported that when the alerting network was not solicited, resolving conflict hindered item encoding. Moreover, resolving conflict, independently of the cueing condition, had a negative impact on context binding. These novel findings could have a potential impact in the understanding EM formation, and memory disorders in different populations, including healthy elderly people.
情景记忆（EM）被定义为一种长期记忆系统，它存储的信息可以与原始事件的背景细节一起被检索出来（绑定）。多项研究表明，编码过程中注意力的操控会影响后续的记忆表现。一种有影响力的注意力模型区分了三个部分独立的注意力网络：警觉网络、定向网络以及执行或冲突解决组件。迄今为止，这些子系统在编码过程中的参与对项目和关系背景绑定的影响尚未得到研究。在此，我们开发了一项新任务，将注意力网络测试与一个偶发性情景记忆编码任务相结合来研究这个问题。我们报告称，当不激活警觉网络时，解决冲突会阻碍项目编码。此外，无论提示条件如何，解决冲突都会对背景绑定产生负面影响。这些新发现可能会对理解情景记忆的形成以及不同人群（包括健康老年人）的记忆障碍产生潜在影响。
