Puvanendran Kalaiyashni, Dowker Ann, Demeyere Nele
a Cognitive Neuropsychology Centre, Department of Experimental Psychology , University of Oxford , Oxford , UK.
Neurocase. 2016;22(2):205-14. doi: 10.1080/13554794.2015.1120311. Epub 2015 Dec 8.
We investigated derived fact strategy use in RR, an aphasic patient with severely impaired working memory (no phonological loop), and 16 neurologically healthy matched controls. Participants were tested on derived fact strategy use in multi-digit addition, subtraction, multiplication, and division. RR's accuracy only differed from controls in multiplication. He was as quick as controls in addition and subtraction when able to use the strategies, though significantly slower in addition, division, and multiplication without strategies. Our findings suggest the phonological loop is non-essential for multi-digit arithmetic, and derived fact strategies can help speed up arithmetic in individuals with impaired working memory.
我们研究了RR（一名工作记忆严重受损且语音回路缺失的失语症患者）和16名匹配的神经健康对照者对派生事实策略的运用情况。参与者接受了多位数加法、减法、乘法和除法中派生事实策略运用的测试。RR的准确率仅在乘法方面与对照组存在差异。当能够运用策略时，他在加法和减法运算中的速度与对照组一样快，不过在没有策略的情况下，加法、除法和乘法运算的速度明显较慢。我们的研究结果表明，语音回路对于多位数算术并非必不可少，派生事实策略可以帮助提高工作记忆受损个体的算术运算速度。
