Rapid processing of closure and viewpoint-invariant symmetry: behavioral criteria for feedforward processing
Rapid processing of closure and viewpoint-invariant symmetry: behavioral criteria for feedforward processing
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DOI：
10.1007/s00426-013-0478-8
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发表时间：
2014
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影响因子：
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通讯作者：
Filipp Schmidt;T. Schmidt
中科院分区：
文献类型：
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作者：
Filipp Schmidt;T. Schmidt
为了确定轮廓处理中对称性和闭合性的处理特征，我们研究了它们在启动侧翼任务中激活快速运动反应的能力。在三个实验中，参与者尽可能快速、准确地选择两个具有对称性或闭合性的目标轮廓之一。目标对之前是空间排列与所需响应一致或不一致的素数对。我们测试了对称和闭合处理的效率和自动化。对于这两种线索，启动效应在最快的运动反应中都存在，与简单的前馈模型一致。对称线索的启动效应与对称轴的倾斜和方向无关，但有时无法随着启动目标间隔的增加而增加。我们得出的结论是，在神经元处理的第一个前馈波期间，闭合和（可能）独立于视点的对称线索被快速提取。
To pin down the processing characteristics of symmetry and closure in contour processing, we investigated their ability to activate rapid motor responses in a primed flanker task. In three experiments, participants selected as quickly and accurately as possible the one of two target contours possessing symmetry or closure. Target pairs were preceded by prime pairs whose spatial arrangement was consistent or inconsistent with respect to the required response. We tested for the efficiency and automaticity of symmetry and closure processing. For both cues, priming effects were present in full magnitude in the fastest motor responses consistent with a simple feedforward model. Priming effects from symmetry cues were independent of skewing and the orientation of their symmetry axis but sometimes failed to increase with increasing prime-target interval. We conclude that closure and (possibly) viewpoint-independent symmetry cues are extracted rapidly during the first feedforward wave of neuronal processing.