Reynvoet B, Brysbaert M
Department of Experimental Psychology, University of Gent, Belgium.
Cognition. 1999 Sep 30;72(2):191-201. doi: 10.1016/s0010-0277(99)00048-7.
Many theories about human number representation stress the importance of a central semantic representation that includes the magnitude information of small integer numbers, and that is conceived as an abstract, compressed number line. However, thus far there has been little or no direct evidence that units and teens are represented on the same number line. In two masked priming experiments, we show that single-digit and two-digit Arabic numerals are equally well primed by an Arabic numeral with the same number of digits as by an equally distant Arabic numeral with a different number of digits (e.g. the priming effect of 7 on the target 9 is the same as the priming effect of 11 on the target 9). The finding was obtained both with a number naming task and with a parity judgement task. This is in line with the hypothesis that units and teens are part of a continuous number line.
许多关于人类数字表征的理论强调一种核心语义表征的重要性，这种表征包含小整数的数量信息，并且被设想为一条抽象的、压缩的数字线。然而，到目前为止，几乎没有直接证据表明个位数和十几的数在同一条数字线上得到表征。在两个掩蔽启动实验中，我们发现，与具有不同位数但距离相等的阿拉伯数字相比，具有相同位数的阿拉伯数字对一位数和两位数阿拉伯数字的启动效果相同（例如，7对目标9的启动效应与11对目标9的启动效应相同）。这一发现无论是在数字命名任务还是奇偶判断任务中都得到了验证。这与个位数和十几的数是连续数字线一部分的假设相符。
