University of California, Los Angeles.
Child Dev. 2021 Mar;92(2):e221-e235. doi: 10.1111/cdev.13450. Epub 2020 Aug 17.
The goal was to examine the scope and development of early visual memory durability. We investigated individual- and age-related differences across three unique tasks in 6- to 12-month-olds (M = 8.87, N = 49) by examining the effect of increased delay on memory performance. Results suggest longer-term memory processes are quantifiable by 8 months using a modified Change Detection paradigm and spatial-attention cueing processes are quantifiable by 10 months using a modified Delayed Response paradigm, utilizing 500-1,250 ms delays. Performance improved from 6 to 12 months and longer delays impaired performance. We found no evidence for success on the Delayed Match Retrieval task at any age. These outcomes help inform our understanding of infant visual memory durability and its emergence throughout early development.
目的是研究早期视觉记忆持久性的范围和发展。我们通过增加延迟对记忆表现的影响，在 6 至 12 个月大的婴儿（M=8.87，N=49）中通过三个独特的任务来研究个体和年龄相关的差异。结果表明，使用改进的变化检测范式可以在 8 个月时量化长期记忆过程，使用改进的延迟反应范式可以在 10 个月时量化空间注意提示过程，使用 500-1250ms 的延迟。表现从 6 个月提高到 12 个月，而较长的延迟则会损害表现。我们没有发现任何证据表明在任何年龄都能成功完成延迟匹配检索任务。这些结果有助于我们理解婴儿视觉记忆的持久性及其在早期发展中的出现。
