Internal number magnitude representation is not holistic, either
Internal number magnitude representation is not holistic, either
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内部数字幅度表示也不是整体的
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
K. Willmes
中科院分区：
文献类型：
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作者：
K. Moeller;H. Nuerk;K. Willmes
在过去的几年里，越来越多的证据表明，两位数的大小不仅被表示为一个整体，而且还被分解为数十个单位。最近，张和王(2005)提出，这种分开的加工可能是由于数字的外部表征的存在，而当要比较的数字之一已经内化时，整体加工变得更有可能。后一个结论基本上建立在基于单位的零效应基础上。然而，Nuerk和Willmes(2005)认为，不利的刺激选择可能会引发这种无效效应和误导性的结论。因此，我们使用改进的刺激集对张和王的结论进行了内部标准检验。我们观察到可靠的基于单位的效应在所有条件下都与整体模型相矛盾。因此，也可以为内部标准演示十进制和单位的分解表示法。我们得出的结论是，多位数的分解幅度处理不依赖于外部表征。相反，即使两位数字内在化，十和单位的大小似乎(也)是分开表示的。
Over the last years, evidence has accumulated that the magnitude of two-digit numbers is not only represented as one holistic entity, but also decomposed for tens and units. Recently, Zhang and Wang (2005) suggested such separate processing may be due to the presence of external representations of numbers, whereas holistic processing became more likely when one of the to-be-compared numbers was already internalised. The latter conclusion essentially rested on unit-based null effects. However, Nuerk and Willmes (2005) argued that unfavourable stimulus selection may provoke such null effects and misleading conclusions. Therefore, we tested the conclusion of Zhang and Wang for internal standards with a modified stimulus set. We observed reliable unit-based effects in all conditions contradicting the holistic model. Thus, decomposed representations of tens and units can also be demonstrated for internal standards. We conclude that decomposed magnitude processing of multidigit numbers does not rely on external representations. Rather, even when two-digit numbers are internalised, the magnitudes of tens and units seem to be (also) represented separately.