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首页> 外文期刊>The quarterly journal of experimental psychology: QJEP >Working memory, strategy execution, and strategy selection in mental arithmetic
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Working memory, strategy execution, and strategy selection in mental arithmetic

机译：心算中的工作记忆，策略执行和策略选择

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A total of 72 participants estimated products of complex multiplications of two-digit operands (e.g., 63 x 78), using two strategies that differed in complexity. The simple strategy involved rounding both operands down to the closest decades (e.g., 60 x 70), whereas the complex strategy required rounding both operands up to the closest decades (e.g., 70 x 80). Participants accomplished this estimation task in two conditions: a no-load condition and a working-memory load condition in which executive components of working memory were taxed. The choiceo-choice method was used to obtain unbiased strategy execution and strategy selection data. Results showed that loading working-memory resources led participants to poorer strategy execution. Additionally, participants selected the simple strategy more often under working-memory load. We discuss the implications of the results to further our understanding of variations in strategy selection and execution, as well as our understanding of the impact of working-memory load on arithmetic performance and other cognitive domains.
机译：共有72位参与者使用两种复杂程度不同的策略来估算两位数操作数的复杂乘法（例如63 x 78）。简单策略涉及将两个操作数四舍五入到最接近的十进制（例如60 x 70），而复杂策略需要将两个操作数四舍五入到最接近的十进制（例如70 x 80）。参与者在两个条件下完成了此估算任务：空载条件和工作记忆负载条件，其中对工作记忆的执行组件进行了负担。选择/不选择方法用于获得无偏策略执行和策略选择数据。结果表明，加载工作内存资源导致参与者的战略执行效果较差。此外，参与者在工作记忆负荷下更经常选择简单策略。我们讨论结果的含义，以进一步了解策略选择和执行中的变化，以及了解工作内存负载对算术性能和其他认知领域的影响。

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