在存在干扰物的环境中，具有数学学习困难的人群对子集数量和项目的感知。
The perception of subset quantity and items in an environment with distractors in a population with mathematical learning difficulties.
机构信息
Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, Israel.
Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, Israel.
出版信息
Trends Neurosci Educ. 2021 Dec;25:100166. doi: 10.1016/j.tine.2021.100166. Epub 2021 Nov 8.
OBJECTIVE
People often perceive a quantity of specific objects that appear as part of an overall group of items (a subset). This study investigates this type of perception among a population with mathematical leaning difficulties (MLD).
METHOD
Sixty-two participants (mean age: 26.82) reported the general and subset quantity of items using a subset quantity detection task or a conjunction visual search task.
RESULTS
MLD had difficulties perceiving both the general quantity presented and the subset quantity of items. They also had difficulties preforming a conjunction visual search task, even when the task did not involve numerical processing.
CONCLUSIONS
MLD has spatial difficulties in the form of visual search and subset quantity detection. The current study suggests that MLD might experience greater difficulties in daily tasks, which might be related to those tasks (e.g., detecting the amount of forks among other items of silverware on the table).
目的
人们经常感知到特定数量的出现在整体项目（子集）中的项目。本研究调查了具有数学学习困难（MLD）的人群中的这种类型的感知。
方法
62 名参与者（平均年龄：26.82 岁）使用子集数量检测任务或合取视觉搜索任务报告了总体和子集数量的项目。
结果
MLD 在感知呈现的总体数量和项目的子集数量方面都存在困难。即使任务不涉及数值处理，他们也难以执行合取视觉搜索任务。
结论
MLD 在视觉搜索和子集数量检测方面存在空间困难。本研究表明，MLD 在日常任务中可能会遇到更大的困难，这可能与这些任务有关（例如，在餐桌上的其他餐具中检测叉子的数量）。
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