Cogn Neuropsychol. 2003 Dec 1;20(8):675-701. doi: 10.1080/02643290342000041.
Whole report of brief letter arrays is used to analyse basic attentional deficits in dorsal and ventral variants of simultanagnosia. Using Bundesen's Theory of Visual Attention (TVA), a number of previous theoretical suggestions are formalised and tested, including primary deficit in processing more than one display element, attentional stickiness, foveal bias, and global weakness of the visual representation. Interestingly, data from two cases, one dorsal and one ventral, show little true deficit in simultaneous perception, or selective deficit in those TVA parameters (short-term memory capacity, attentional weighting) specifically associated with multi-element displays. Instead there is a general reduction in speed of visual processing (processing rate in TVA), effective even for a single display element but compounded when two or more elements compete.
整组简短字母数组的报告被用于分析背侧和腹侧同时视障碍中基本注意力缺陷。使用 Bundesen 的视觉注意理论（TVA），对一些先前的理论假设进行了形式化和测试，包括处理超过一个显示元素的主要缺陷、注意力黏性、中央凹偏向和视觉表示的全局弱点。有趣的是，来自两个病例的数据，一个是背侧，一个是腹侧，同时知觉方面的真正缺陷很小，或者与多元素显示具体相关的 TVA 参数（短期记忆容量、注意力权重）选择性缺陷很小。相反，视觉处理速度（TVA 中的处理速率）普遍降低，即使对于单个显示元素也是如此，但当两个或更多元素竞争时会加剧。
