Moss Rehabilitation Research Institute, Albert Einstein Healthcare Network, Philadelphia, Pennsylvania, United States of America.
PLoS One. 2012;7(2):e31180. doi: 10.1371/journal.pone.0031180. Epub 2012 Feb 13.
Elementary arithmetic (e.g., addition, subtraction) in humans has been shown to exhibit spatial properties. Its exact nature has remained elusive, however. To address this issue, we combine two earlier models for parietal cortex: A model we recently proposed on number-space interactions and a modeling framework of parietal cortex that implements radial basis functions for performing spatial transformations. Together, they provide us with a framework in which elementary arithmetic is based on evolutionarily more basic spatial transformations, thus providing the first implemented instance of Dehaene and Cohen's recycling hypothesis.
人类的基本算术（例如加法、减法）已被证明具有空间属性。然而，其确切性质仍然难以捉摸。为了解决这个问题，我们结合了两个早期的顶叶皮层模型：我们最近提出的关于数字-空间相互作用的模型和一个用于执行空间变换的径向基函数的顶叶皮层建模框架。它们共同为我们提供了一个框架，在这个框架中，基本算术是基于进化上更基本的空间变换的，从而提供了 Dehaene 和 Cohen 的循环假设的第一个实现实例。
