Object features fail independently in visual working memory: evidence for a probabilistic feature-store model.
Object features fail independently in visual working memory: evidence for a probabilistic feature-store model.
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DOI：
10.1167/11.12.3
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发表时间：
2011-10-06
影响因子：
1.8
通讯作者：
Alvarez GA
中科院分区：
文献类型：
--
作者：
Fougnie D;Alvarez GA
世界是由特征和对象组成的，这种结构可能会影响工作记忆中存储的内容。人们普遍认为记忆的内容是基于对象的：记忆存储的是集成的对象，而不是独立的特征。我们要求参与者报告一个物体的颜色和方向，发现记忆错误在很大程度上是独立的：即使物体的一个特征完全忘记了，另一个特征也经常被报告。这一发现与基于对象的模型相矛盾，并挑战了关于工作记忆中信息组织的基本假设。我们提出了一个替代框架，涉及独立的自我维持的表示，可能会失败的概率和独立的每个功能。这个帐户预测，在特征存储的独立程度是由感知过程中的神经编码的重叠程度。与这一预测一致，我们发现，联合编码的尺寸的错误是独立的比独立编码的尺寸的错误。
The world is composed of features and objects and this structure may influence what is stored in working memory. It is widely believed that the content of memory is object-based: Memory stores integrated objects, not independent features. We asked participants to report the color and orientation of an object and found that memory errors were largely independent: Even when one of the object’s features was entirely forgotten, the other feature was often reported. This finding contradicts object-based models and challenges fundamental assumptions about the organization of information in working memory. We propose an alternative framework involving independent self-sustaining representations that may fail probabilistically and independently for each feature. This account predicts that the degree of independence in feature storage is determined by the degree of overlap in neural coding during perception. Consistent with this prediction, we found that errors for jointly encoded dimensions were less independent than errors for independently encoded dimensions.
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影响因子：
3.5
作者：
Eng, HY;Chen, DY;Jiang, YH
通讯作者：
Jiang, YH
影响因子：
1.7
作者：
Delvenne, Jean-Francois;Bruyer, Raymond
通讯作者：
Bruyer, Raymond
影响因子：
1.8
作者：
Bays PM;Catalao RF;Husain M
通讯作者：
Husain M
DOI：
10.1523/jneurosci.4125-10.2011
发表时间：
2011-01-19
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Anderson DE;Vogel EK;Awh E
通讯作者：
Awh E
影响因子：
4.1
作者：
EGLY, R;DRIVER, J;RAFAL, RD
通讯作者：
RAFAL, RD