Contributions from cognitive neuroscience to understanding functional mechanisms of visual search
Contributions from cognitive neuroscience to understanding functional mechanisms of visual search
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DOI：
10.1080/13506280500195516
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发表时间：
2006-08-01
期刊：
影响因子：
2
通讯作者：
Yoon, Eun Young
中科院分区：
文献类型：
--
作者：
Humphreys, Glyn W.;Hodsoll, John;Yoon, Eun Young
我们认为，认知神经科学不仅可以提供关于视觉搜索过程的神经定位的信息，还可以提供关于这些过程的功能性质的信息。首先，我们概述了最近关于形式-颜色连词的搜索是否受到涉及跨两个维度的绑定的过程的限制的工作。与不需要跨维约束的更困难的搜索任务相比，患有顶叶病变的患者表现出形式-颜色联合搜索的选择性问题。这与参与合取搜索任务的另一个过程--跨维度绑定--是一致的。然后，我们使用电生理、脑成像和神经心理学技术回顾了预览搜索的证据，表明预览在搜索中的好处不仅仅是由于起始捕获。总而言之，这些结果强调了使用来自正常观察者行为研究和使用神经科学方法的研究的融合证据的价值。
We argue that cognitive neuroscience can contribute not only information about the neural localization of processes underlying visual search, but also information about the functional nature of these processes. First we present an overview of recent work on whether search for form-colour conjunctions is constrained by processes involved in binding across the two dimensions. Patients with parietal lesions show a selective problem with form-colour conjunctive search relative to a more difficult search task not requiring cross-dimensional binding. This is consistent with an additional process -cross-dimensional binding-being involved in the conjunctive search task. We then review evidence from preview search using electrophysiological, brain imaging, and neuropsychological techniques suggesting preview benefits in search are not simply due to onset capture. Taken together the results highlight the value of using converging evidence from behavioural studies of normal observers and studies using neuroscientific methods.