Neural interactions in working memory explain decreased recall precision and similarity-based feature repulsion.
Neural interactions in working memory explain decreased recall precision and similarity-based feature repulsion.
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DOI：
10.1038/s41598-022-22328-4
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发表时间：
2022-10-22
影响因子：
4.6
通讯作者：
Spencer JP
中科院分区：
文献类型：
--
作者：
Johnson JS;van Lamsweerde AE;Dineva E;Spencer JP
在过去的几年里，工作记忆（WM）对简单视觉特征的研究（例如，颜色，方向）已经被假设WM中的项目彼此独立地存储的观点所主导。然而，有证据表明，系统性的偏见，在WM回忆表明，项目在WM互动期间积极维护。在本研究中，我们报告了两个实验，复制的排斥偏置之间的度量相似的颜色在主动存储在WM。我们还观察到，度量相似的颜色存储的分辨率低于同时积极记住的独特颜色。为了解释这些影响，我们报告了两个新的WM神经动力学模型的定量模拟。在这两种模型中，这里报告的独特的行为特征直接来自于侧抑制性神经相互作用，这些相互作用在整个WM延迟期内维持多个不同的神经表征。模拟结果表明，只有获得完整的模式的实证研究结果与模型，其中包括一个详细的空间路径与顺序编码的记忆显示项目。我们讨论了我们的研究结果的视觉工作记忆的理论更普遍的影响。
Over the last several years, the study of working memory (WM) for simple visual features (e.g., colors, orientations) has been dominated by perspectives that assume items in WM are stored independently of one another. Evidence has revealed, however, systematic biases in WM recall which suggest that items in WM interact during active maintenance. In the present study, we report two experiments that replicate a repulsion bias between metrically similar colors during active storage in WM. We also observed that metrically similar colors were stored with lower resolution than a unique color held actively in mind at the same time. To account for these effects, we report quantitative simulations of two novel neurodynamical models of WM. In both models, the unique behavioral signatures reported here emerge directly from laterally-inhibitory neural interactions that serve to maintain multiple, distinct neural representations throughout the WM delay period. Simulation results show that the full pattern of empirical findings was only obtained with a model that included an elaborated spatial pathway with sequential encoding of memory display items. We discuss implications of our findings for theories of visual working memory more generally.
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影响因子：
1.8
作者：
Dube, Chad;Zhou, Feng;Kahana, Michael J.;Sekuler, Robert
通讯作者：
Sekuler, Robert
DOI：
10.1016/j.cub.2015.11.013
发表时间：
2016-01-11
期刊：
Current biology : CB
影响因子：
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作者：
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通讯作者：
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影响因子：
1.8
作者：
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通讯作者：
Husain M
DOI：
10.3758/s13414-017-1404-8
发表时间：
2017-11
期刊：
Attention, perception & psychophysics
影响因子：
--
作者：
Bae GY;Luck SJ
通讯作者：
Luck SJ
影响因子：
19.9
作者：
Luck SJ;Vogel EK
通讯作者：
Vogel EK