People indicate the physical size or the parity status of small numbers faster by a left-hand key and those of larger numbers by a right-hand key. Because magnitude information is not required for successful performance in these tasks, the presence of a number-space association (the SNARC effect) has been taken to indicate the automatic activation of numerical magnitude in all tasks with numerals. In order to test this account, in a series of five experiments, we derived two consensual markers of automatic activation of irrelevant numerical magnitude, the size congruity effect (for judgments of physical size), and the Garner effect (for judgments of parity). Both markers were found independent of the SNARC effect. Consequently, we question the traditional explanation of the SNARC effect and offer an alternative account in terms of a highly overlearned stimulus-response loop.

中文翻译：

---

奇偶校验，物理尺寸和大小在数字认知中的作用：重新审视了SNARC效应。

人们可以通过左键更快地指示小数字的物理大小或奇偶状态，而通过右键可以更快地指示小数字的物理大小或奇偶状态。因为在这些任务中成功执行并不需要幅度信息，所以已经采用数字空间关联（SNARC效应）来指示所有带有数字的任务中数值幅度的自动激活。为了测试这一点，在一系列的五个实验中，我们得出了两个不相关的数值大小自动激活的共识标记，即大小一致效应（用于判断物理尺寸）和加纳效应（用于奇偶性判断）。发现这两种标记物都与SNARC效应无关。所以，