a Psychological Sciences Research Institute , Catholic University of Louvain , Louvain-la-Neuve , Belgium.
b Research Unit "Enfances" , University of Liège , Liège , Belgium.
Cogn Neuropsychol. 2018 Oct;35(7):352-360. doi: 10.1080/02643294.2018.1461616. Epub 2018 Apr 11.
Recent models of visuospatial (VSSP) short-term memory postulate the existence of two dissociable mechanisms depending on whether VSSP information is presented simultaneously or sequentially. However, they do not specify to what extent VSSP short-term memory is under the influence of general VSSP processing. This issue was examined in people with 22q11.2 deletion syndrome, a genetic condition involving a VSSP deficit. The configuration of VSSP information was manipulated (structured vs. unstructured) to explore the impact of arrangement on VSSP short-term memory. Two presentation modes were used to see whether the VSSP arrangement has the same impact on simultaneous and sequential short-term memory. Compared to children matched on chronological age, children with 22q11.2 deletion syndrome showed impaired performance only for structured arrangement, regardless of the presentation mode, suggesting an influence of VSSP processing on VSSP short-term memory abilities. A revised cognitive architecture for a model of VSSP short-term memory is proposed.
最近的视空间（VSSP）短期记忆模型假设存在两种可分离的机制，这取决于 VSSP 信息是同时呈现还是顺序呈现。然而，它们没有具体说明 VSSP 短期记忆在多大程度上受到一般 VSSP 处理的影响。本研究通过 22q11.2 缺失综合征患者来探讨这个问题，该遗传病症涉及 VSSP 缺陷。通过操纵 VSSP 信息的配置（结构化与非结构化）来探索排列方式对 VSSP 短期记忆的影响。使用两种呈现模式来观察 VSSP 排列方式是否对同时和顺序短期记忆产生相同的影响。与按年龄匹配的儿童相比，22q11.2 缺失综合征儿童在结构排列方面表现出受损，而无论呈现模式如何，这表明 VSSP 处理对 VSSP 短期记忆能力有影响。因此，提出了一种 VSSP 短期记忆模型的修正认知架构。
