Detection of symmetry and perceptual organization: The way a lock-and-key process works
Detection of symmetry and perceptual organization: The way a lock-and-key process works
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DOI：
10.1016/s0001-6918(96)00038-8
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发表时间：
1997-02-01
影响因子：
1.8
通讯作者：
Kubovy, M
中科院分区：
文献类型：
--
作者：
Bertamini, M;Friedenberg, JD;Kubovy, M
我们研究了观察者在绘画中发现对称性的速度，这些绘画包含了单个物体或不同物体之间的对称轮廓（通过反射或平移相关）。我们要求观察者快速判断轮廓对是否相同，即，通过反射或翻译相关，或不同。当轮廓属于一个单一的对象，观察者更快地看到轮廓之间的关系时，他们是通过反射比平移相关。当轮廓属于不同的对象时，观察者更快地看到轮廓之间的关系，当它们通过平移而不是反射而相关时。我们测试了翻译的这种优势是否是由于锁和钥匙的过程。我们首先通过操纵特征的对应性来测试我们的假设，以便使匹配更加困难。这种变化并没有产生预测的结果模式，我们进行了第二次操作来改变对象的外观：我们通过改变用于连接轮廓的线的类型来增加对象的pragnanz。结果表明，知觉组织可以改变对称性的可检测性。
We studied the speed with which observers could detect symmetry in drawings that incorporated symmetric contours - related by reflection or translation - within single objects or across different objects. We asked observers to perform a speeded decision whether pairs of contours are the same, i.e., related by reflection or by translation, or different. When the contours belong to a single object, observers are faster to see the relation between contours when they are related by reflection than by translation. When the contours belong to different objects, observers are faster to see the relation between the contours when they are related by translation than by reflection. We tested whether this advantage of translation is due to a lock-and-key process. We first tested our hypothesis by manipulating the correspondence of the features, so as to make matching more difficult. This change did not produce the predicted pattern of results, We performed a second manipulation to change the appearance of the objects: we increased the pragnanz of the objects by changing the type of lines used to connect the contours. Results indicate that perceptual organization can alter the detectability of symmetry.