Perceptual centering effects in body orientation.
Perceptual centering effects in body orientation.
复制标题
身体定向的知觉中心效应。
DOI：
10.1007/s00422-005-0048-2
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发表时间：
2006
影响因子：
1.9
通讯作者：
Hanes,DA
中科院分区：
文献类型：
--
作者：
Hanes,DA
本研究在数学上表征了DiZio和Lackner（Percept Psychphys 39（1）：39-46）关于由视动刺激诱导的圆形向量期间的自我定向感知的结果。使用知觉中心的假设，它表明，五个基本的中心转换可以逻辑上占的主题报告的全部范围的错觉。所有这五种变换都集中了身体各部分、旋转圆盘和重力的感知方向：两种变换使感知的视觉轴和惯性旋转轴对齐，一种变换使感知的视觉旋转轴集中在头部前方，两种变换使感知的颈部角度变直。这些变换生成一个数学半群。将半群应用于实际的刺激条件会产生一个预测错觉的轨道。知觉中心的半群分析预测了迪齐奥和拉克纳实验中观察到的所有错觉（Percept Psychphys 39（1）：39-46）。此外，知觉中心的结构（1）为这些错误知觉的发生提供了逻辑解释;（2）预测了预期在更大样本中发生的完整知觉集。此外，我们的分析预测了尚未调查的实验条件下的错觉
This study mathematically characterizes the results of DiZio and Lackner (Percept Psychphys 39(1): 39–46) on the perception of self-orientation during circular vection induced by an optokinetic stimulus. Using the hypothesis of perceptual centering, it is shown that five basic centering transformations can logically account for the full range of illusions reported by the subjects. All five of these transformations center the perceived orientations of body components, the rotating disk, and gravity : two align the perceived visual and inertial rotation axes, one centers the perceived axis of visual rotation in front of the head, and two straighten the perceived neck angle. These transformations generate a mathematical semigroup. Application of the semigroup to an actual stimulus condition generates an orbit of predicted illusions. The semigroup analysis of perceptual centering predicts all of the illusions observed in the experiments of DiZio and Lackner (Percept Psychphys 39(1): 39–46). Moreover, the structure of perceptual centering (1) provides a logical explanation for the occurrence of those misperceptions; and (2) predicts the complete set of perceptions that are expected to occur in a larger sample. In addition, our analysis predicts illusions in experimental conditions not yet investigated