Humphreys Glyn W, Hodsoll John, Riddoch M Jane
Behavioural Brain Sciences Centre, School of Psychology, University of Birmingham, Birmingham, United Kingdom.
J Exp Psychol Hum Percept Perform. 2009 Jun;35(3):627-47. doi: 10.1037/a0013705.
The authors present neuropsychological evidence distinguishing binding between form, color, and size (cross-domain binding) and binding between form elements. They contrasted conjunctive search with difficult feature search using control participants and patients with unilateral parietal or fronto/temporal lesions. To rule out effects of task difficulty or loss of top-down guidance of search, the authors made conjunction search easier than feature search. Despite this, parietal patients were selectively impaired at detecting conjunction targets in their contralateral field. In contrast, the parietal patients performed like the other participants with form conjunctions, with form conjunctions being easier to detect than difficult feature targets. These data indicate a qualitative difference between binding in the form domain and binding across form, color, and size, consistent with theories that propose distinct binding processes in vision.
作者们展示了区分形状、颜色和大小之间的绑定（跨领域绑定）以及形状元素之间绑定的神经心理学证据。他们使用对照组参与者和患有单侧顶叶或额颞叶损伤的患者，将联合搜索与困难特征搜索进行了对比。为了排除任务难度或搜索的自上而下引导丧失的影响，作者使联合搜索比特征搜索更容易。尽管如此，顶叶患者在检测对侧视野中的联合目标时仍有选择性受损。相比之下，顶叶患者在形状联合方面的表现与其他参与者类似，形状联合比困难的特征目标更容易检测。这些数据表明形状领域内的绑定与跨形状、颜色和大小的绑定之间存在质的差异，这与提出视觉中不同绑定过程的理论一致。
