Department of Psychology and Delta Center, University of Iowa, Iowa City, IA 52242, USA.
Dev Sci. 2011 Nov;14(6):1379-92. doi: 10.1111/j.1467-7687.2011.01083.x. Epub 2011 Sep 17.
Visual working memory (VWM) capacity has been studied extensively in adults, and methodological advances have enabled researchers to probe capacity limits in infancy using a preferential looking paradigm. Evidence suggests that capacity increases rapidly between 6 and 10 months of age. To understand how the VWM system develops, we must understand the relationship between the looking behavior used to study VWM and underlying cognitive processes. We present a dynamic neural field model that captures both real-time and developmental processes underlying performance. Three simulation experiments show how looking is linked to VWM processes during infancy and how developmental changes in performance could arise through increasing neural connectivity. These results provide insight into the sources of capacity limits and VWM development more generally.
视觉工作记忆 (VWM) 容量在成人中已得到广泛研究，并且方法学的进步使得研究人员能够使用优先注视范式在婴儿期探测容量极限。有证据表明，容量在 6 至 10 个月之间迅速增加。为了了解 VWM 系统如何发展，我们必须了解用于研究 VWM 的注视行为与潜在认知过程之间的关系。我们提出了一个动态神经场模型，该模型捕获了表现背后的实时和发展过程。三个模拟实验表明了在婴儿期注视行为如何与 VWM 过程相关联，以及如何通过增加神经连接来导致表现的发展变化。这些结果提供了对容量限制和 VWM 发展的更深入的了解。
