The limited place in cognitive space

The limited place in cognitive space
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认知空间的有限位置

DOI:
10.1101/2022.04.25.489165
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发表时间:
2022
期刊:
--
影响因子:
--
通讯作者:
Hodgetts C
Hodgetts C
中科院分区:
--
文献类型:
--
作者:
Hodgetts C

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我们如何判断世界上刺激之间的相似性最终与我们如何表征它们有关。正因为如此,关于我们如何建模相似性的决定,无论是在人类行为还是神经活动模式方面,都可以为如何构建和组织表征提供关键见解。尽管如此,心理学和认知神经科学仍然被狭窄范围的相似性模型所主导,特别是那些将相似性描述为“认知空间”内的距离的模型。尽管这些模型很有吸引力,但它们的拓扑性质对它们捕捉世界中对象和事件之间关系的能力产生了根本性的限制。为了探索这一点,我们创建了一个刺激集,其中预测的相似性关系(基于相似性的替代模型)不能简单地嵌入欧几里得空间。这种方法表明,空间模型扭曲了这些预测,以及人类观察者感知到的相似性。这些发现表明,认知空间-认知神经科学中探索视觉和概念表征的最新工作的基础-在基本方面受到限制,限制了它们的理论和实际效用。
How we judge the similarity between stimuli in the world is connected ultimately to how we represent them. Because of this, decisions about how we model similarity, either in terms of human behavior or patterns of neural activity, can provide key insights into how representations are structured and organized. Despite this, psychology and cognitive neuroscience continue to be dominated by a narrow range of similarity models, particularly those that characterize similarity as distance within “cognitive space.” Despite the appeal of such models, their topological nature places fundamental constraints on their ability to capture relationships between objects and events in the world. To probe this, we created a stimulus set in which the predicted similarity relationships (based on an alternative model of similarity) could not be simply embedded within Euclidean space. This approach revealed that the spatial model distorts these predictions, and the perceived similarities of human observers. These findings indicate that cognitive spaces—that underlie much recent work probing both visual and conceptual representations in cognitive neuroscience—are limited in fundamental ways that restrict their theoretical and practical utility.
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