Gliksman Yarden, Naparstek Sharon, Ifergane Gal, Henik Avishai
Department of Psychology and Zlotowski Center for Neuroscience, Ben-Gurion University of the NegevBeer-Sheva, Israel.
Department of Rehabilitation, Soroka University Medical CenterBeer-Sheva, Israel.
Front Psychol. 2017 Sep 19;8:1622. doi: 10.3389/fpsyg.2017.01622. eCollection 2017.
We describe Jane Dow (JD), a young right-handed female with acalculia following a cerebral infarction in the left intraparietal sulcus. We investigated automatic processing of different types of magnitudes that were presented visually or through imagery. We employed the size congruity task and the mental clock task that differ in stimuli presentation and in working memory load. In the size congruity task, for physical comparisons, JD presented a lack of facilitation effect, suggesting a deficit in the automatic processing of numerical values. In the mental clock task, JD performed as accurate as controls did but much slower. In both tasks, JD presented a steeper distance effect compared to controls, suggesting a deficit in a domain-general comparison process. Our findings present an atypical pattern of magnitude processing following a left parietal lesion that appears not only for visually presented stimuli but also for imagery-based magnitudes. These finding support recent theories suggesting different types of magnitudes are interconnected with each other.
我们描述了简·道（JD），一名年轻的右利手女性，她在左侧顶内沟发生脑梗塞后出现失算症。我们研究了通过视觉或意象呈现的不同类型数量的自动加工过程。我们采用了大小一致性任务和心理时钟任务，这两项任务在刺激呈现和工作记忆负荷方面存在差异。在大小一致性任务中，进行物理比较时，JD表现出缺乏促进效应，这表明其在数值自动加工方面存在缺陷。在心理时钟任务中，JD的表现与对照组一样准确，但速度要慢得多。在这两项任务中，与对照组相比，JD表现出更明显的距离效应，这表明其在领域通用的比较过程中存在缺陷。我们的研究结果呈现出左侧顶叶病变后数量加工的非典型模式，这种模式不仅出现在视觉呈现的刺激中，也出现在基于意象的数量中。这些发现支持了最近的理论，即不同类型的数量相互关联。
