Visual Search Targeting Either Local or Global Perceptual Processes Differs as a Function of Autistic-Like Traits in the Typically Developing Population
Visual Search Targeting Either Local or Global Perceptual Processes Differs as a Function of Autistic-Like Traits in the Typically Developing Population
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DOI：
10.1007/s10803-012-1669-7
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发表时间：
2013-06-01
影响因子：
3.9
通讯作者：
Badcock, David R.
中科院分区：
文献类型：
--
作者：
Almeida, Renita A.;Dickinson, J. Edwin;Badcock, David R.
与得分低的人相比，自闭症谱系商（AQ）得分高的人在嵌入图形测试和径向频率搜索任务（RFST）上的表现更好，这是由于局部处理能力的增强和综合全局感知能力的差异。我们在四个实验中使用RFST进一步研究了局部和全局处理的作用。高智商成人在不同的目标-干扰刺激条件下，在搜索速度上保持一致的优势。这一优势可能反映了在形状视觉路径的早期阶段曲率局部处理的增强和形状原语的全局检测的优势。然而，更有可能的是存在一种优越的搜索过程，使在两个处理级别上都具有一致的搜索优势。
Relative to low scorers, high scorers on the Autism-Spectrum Quotient (AQ) show enhanced performance on the Embedded Figures Test and the Radial Frequency search task (RFST), which has been attributed to both enhanced local processing and differences in combining global percepts. We investigate the role of local and global processing further using the RFST in four experiments. High AQ adults maintained a consistent advantage in search speed across diverse target-distracter stimulus conditions. This advantage may reflect enhanced local processing of curvature in early stages of the form vision pathway and superior global detection of shape primitives. However, more probable is the presence of a superior search process that enables a consistent search advantage at both levels of processing.