Visual working memory performance in aphantasia
Visual working memory performance in aphantasia
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DOI：
10.1016/j.cortex.2017.10.014
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发表时间：
2018-08-01
期刊：
影响因子：
3.6
通讯作者：
Silvanto, Juha
中科院分区：
文献类型：
--
作者：
Jacobs, Christianne;Schwarzkopf, Dietrich S.;Silvanto, Juha
失语症，即先天性无法体验自愿心理意象，为研究心理意象在（视觉）认知中的功能作用提供了一种新模型。然而，到目前为止，还没有研究调查失语症是否与特定的认知功能障碍有关。在这里，我们评估了失语者的视觉工作记忆表现。我们发现，在最困难（即需要最高精确度）的视觉工作记忆试验中，她的表现明显比对照组差。令人惊讶的是，尽管她缺乏对自己表现的元认知洞察，但她在涉及心理意象的任务中的表现与对照组没有什么不同。总之，这些结果表明，尽管在某些情况下可以弥补心理意象的缺乏，但心理意象在视觉认知的其他领域也具有功能性作用，其中之一就是高精度工作记忆。 (C) 2017 Elsevier Ltd. 保留所有权利。
Aphantasia, i.e., the congenital inability to experience voluntary mental imagery, offers a new model for studying the functional role of mental imagery in (visual) cognition. However, until now, there have been no studies investigating whether aphantasia can be linked to specific impairments in cognitive functioning. Here, we assess visual working memory performance in an aphantasic individual. We find that she performs significantly worse than controls on the most difficult (i.e., requiring the highest degree of precision) visual working memory trials. Surprisingly, her performance on a task designed to involve mental imagery did not differ from controls', although she lacked metacognitive insight into her performance. Together, these results indicate that although a lack of mental imagery can be compensated for under some conditions, mental imagery has a functional role in other areas of visual cognition, one of which is high-precision working memory. (C) 2017 Elsevier Ltd. All rights reserved.