Perception of American sign language in dynamic point-light displays.
Perception of American sign language in dynamic point-light displays.
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DOI：
10.1037//0096-1523.7.2.430
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发表时间：
1981-04
期刊：
影响因子：
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通讯作者：
H. Poizner;U. Bellugi;V. Lutes-Driscoll
中科院分区：
文献类型：
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作者：
H. Poizner;U. Bellugi;V. Lutes-Driscoll
通过分离语言中的动作信息和形式信息，研究了美国手语（ASL）中动态事件的感知。四个实验利用约翰森的技术，将生物运动表现为移动的光点。在第一，聋人签名是高度准确的匹配运动的词汇符号在点光显示那些正常提出。这两个歧视的准确性和模式的错误是相似的，在这个匹配任务中获得的控制条件下，相同的符号总是表示正常。第二个实验表明，这些结果举行的歧视的形态操作中提出的点光显示器以及。在第三个实验中，签名者能够准确地识别出一个恒定的手形和形态操作的迹象，在点光显示器上呈现的迹象。最后，在实验4中，我们评估了哪些方面的运动模式进行了大部分的信息标志可识别性。我们提出的迹象点光显示与某些灯删除，并发现指尖的运动，但不是任何其他对点，是必要的迹象识别，并在一般情况下，越远的关节，其运动携带的信息越多。
Perception of dynamic events of American Sign Language (ASL) was studied by isolating information about motion in the language from information about form. Four experiments utilized Johansson's technique for presenting biological motion as moving points of light. In the first, deaf signers were highly accurate in matching movements of lexical signs presented in point-light displays to those normally presented. Both discrimination accuracy and the pattern of errors were similar in this matching task to that obtained in a control condition in which the same signs were always represented normally. The second experiment showed that these results held for discrimination of morphological operations presented in point-light displays as well. In the third experiment, signers were able to accurately identify signs of a constant handshape and morphological operations acting on signs presented in point-light displays. Finally, in Experiment 4, we evaluated what aspects of the motion patterns carried most of the information for sign identifiability. We presented signs in point-light displays with certain lights removed and found that the movement of the fingertips, but not of any other pair of points, is necessary for sign identification and that, in general, the more distal the joint, the more information its movement carries.