Feature binding in visual short-term memory is unaffected by task-irrelevant changes of location, shape, and color
Feature binding in visual short-term memory is unaffected by task-irrelevant changes of location, shape, and color
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DOI：
10.3758/s13421-010-0001-z
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发表时间：
2011-01-01
影响因子：
2.4
通讯作者：
Jaswal, Snehlata
中科院分区：
文献类型：
--
作者：
Logie, Robert H.;Brockmole, James R.;Jaswal, Snehlata
三个实验采用一种变化检测范式，跨越一定的学习-测试间隔，探讨了位置、形状和颜色对感觉记忆和视觉短期记忆（VSTM）中特征绑定形成的各自贡献。在实验1中，位置被指定为任务无关，并在研究和测试显示之间随机化。任务是检测形状和颜色之间绑定的变化。在实验2和实验3中，形状和颜色分别是任务无关和随机的，并测试了位置和颜色（实验2）和位置和形状（实验3）之间的绑定。在较短的研究测试间隔中，随机位置是最具破坏性的，其次是形状，然后是颜色。在较长的时间间隔内，随机化任何与任务无关的特征对特征之间绑定的变更检测没有影响，并且位置没有特殊的作用。结果表明，位置对初始知觉绑定至关重要，但一旦在VSTM中形成表征，就会失去这种特殊地位，而VSTM的运作原理与视觉注意和知觉不同。
Three experiments used a change detection paradigm across a range of study-test intervals to address the respective contributions of location, shape, and color to the formation of bindings of features in sensory memory and visual short-term memory (VSTM). In Experiment 1, location was designated task irrelevant and was randomized between study and test displays. The task was to detect changes in the bindings between shape and color. In Experiments 2 and 3, shape and color, respectively, were task irrelevant and randomized, with bindings tested between location and color (Experiment 2) and location and shape (Experiment 3). At shorter study-test intervals, randomizing location was most disruptive, followed by shape and then color. At longer intervals, randomizing any task-irrelevant feature had no impact on change detection for bindings between features, and location had no special role. Results suggest that location is crucial for initial perceptual binding but loses that special status once representations are formed in VSTM, which operates according to different principles, than do visual attention and perception.