Working-Memory Performance 1 Running head: WORKING-MEMORY PERFORMANCE The Evidence for A Guessing State in Working-Memory Judgments
Working-Memory Performance 1 Running head: WORKING-MEMORY PERFORMANCE The Evidence for A Guessing State in Working-Memory Judgments
复制标题
工作记忆性能 1 运行头：工作记忆性能 工作记忆判断中猜测状态的证据
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
N. Cowan
中科院分区：
文献类型：
--
作者：
Jeffrey N. Rouder;Jonathan E. Thiele;Jordan M. Province;Michael Cusumano;N. Cowan
我们展示了四个实验的结果，旨在评估视觉工作记忆是否存在猜测成分，其中猜测是指不反映所呈现刺激的反应。猜测的存在很重要，因为此类组件与 WM 的离散时隙视图密切一致，但与许多竞争视图不一致。我们使用来自Zhang和Luck（2008，Nature，453, 233-235）的生产范式，除了我们的刺激在角位移上不同，只能在有限的范围内而不是在所有角度上自由变化。因此，猜测呈现出一种独特的模式：当人们猜测时，他们倾向于选择刻板的顺时针或逆时针位置，事实上，在所有实验中都观察到了这种模式。我们正式拟合了大量离散时隙和分布式资源模型，并发现修改后的离散时隙模型在所有实验中都优于分布式资源模型。我们发现的一种新现象是粗编码。要么用细粒度的度量信息对项目进行编码，要么对它们进行粗略编码直至分类值（例如，刻板的顺时针或逆时针方向）。讨论了对未来理论发展的影响。
We present the results of four experiments designed to assess whether there is a guessing component to visual working memory, where guessing refers to responses that do not reflect the presented stimuli. The presence of guessing is important because such components are intimately consistent with discrete-slot view of WM and inconsistent with many competing views. We use the production paradigm from Zhang and Luck (2008, Nature, 453, 233-235), except our stimuli, which differ in angular displacement, are free to vary only within a restricted range rather than across all angles. As a result, guesses take on a distinctive pattern: when people guess they tend to select either a stereotypical clockwise or counter-clockwise position, and indeed this pattern is observed across all experiments. We formally fit a large number of discrete-slot and distributed-resource models and find that modified discrete-slot models outperform distributed-resource models in all experiments. One novel phenomenon we find is coarse encoding. Either items are encoded with fine-grain metric information, or they are encoded coarsely up to a categorical value (e.g., a stereotypical clockwise or counter-clockwise orientation). Implications for future theoretical developments are discussed.
登录
查看更多内容
影响因子：
5.4
作者：
Cowan, Nelson;Rouder, Jeffrey N.;Blume, Christopher L.;Saults, J. Scott
通讯作者：
Saults, J. Scott
DOI：
10.1037/a0015792
发表时间：
2009-10
影响因子：
2.1
作者：
Barton, Brian;Ester, Edward F.;Awh, Edward
通讯作者：
Awh, Edward
影响因子：
5.4
作者：
Donkin, Christopher;Nosofsky, Robert M.;Gold, Jason M.;Shiffrin, Richard M.
通讯作者：
Shiffrin, Richard M.
影响因子：
5.4
作者：
Sims, Chris R.;Jacobs, Robert A.;Knill, David C.
通讯作者：
Knill, David C.
DOI：
10.1037/a0029687
发表时间：
2013-05
影响因子：
2.6
作者：
Cowan, Nelson;Blume, Christopher L.;Saults, J. Scott
通讯作者：
Saults, J. Scott