“Starkfest” Vision and Clinic Science Special Issue: String Editing Analysis of Human Visual Search
“Starkfest” Vision and Clinic Science Special Issue: String Editing Analysis of Human Visual Search
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“Starkfest”视觉与临床科学特刊：人类视觉搜索的字符串编辑分析
DOI：
10.1097/00006324-199507000-00003
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发表时间：
1995
影响因子：
1.4
通讯作者：
Lawrence Stark
中科院分区：
文献类型：
--
作者：
Yun Choi;Anthony D. Mosley;Lawrence Stark
为在立体计算机生成的三维场景中执行视觉搜索任务的人类受试者记录眼动(EM)数据。每次实验包括六个演示：三个不同的物体放置在一个共同的背景(准自然场景)上，其中一个放置被重复三次。将原始EM搜索路径数据线性化，通过固定算法定义固定点，最后基于先验区域化方案获得固定区域标签串。字符串编辑技术的使用允许对各种搜索路径的相似性进行定量比较。对每个主题以及跨主题的搜索路径的相似性分析导致我们得出结论，重复对象放置的呈现导致每个主题基于该放置模式的空间模型而形成部分自洽但独特的搜索路径。
Eye movement (EM) data were recorded for human subjects performing a visual search task in a stereoscopic computer-generated three-dimensional scene. Each experimental run consisted of six presentations: three different object placements on a common background (quasi-natural scene) were used and one of the placements was repeated three additional times. Raw EM searchpath data were linearized, fixation points were defined via a fixation algorithm and, finally, strings of fixation region labels were obtained based upon a priori regionalization schemes. Use of string editing techniques allowed quantitative comparison of the similarity of various searchpaths. Analysis of the similarity of searchpaths for each subject, as well as across subjects, led us to conclude that presentation of repeated object placements caused each subject to develop a partly self-consistent, but idiosyncratic searchpath based upon a spatial model for that placement pattern.