On the relativity of relative frequencies.

On the relativity of relative frequencies.
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DOI:
10.3758/s13414-012-0409-6
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发表时间:
2013-04
期刊:
Attention, perception & psychophysics
影响因子:
--
通讯作者:
Cohen DJ
Cohen DJ
中科院分区:
其他
文献类型:
--
作者:
Warren E;Cohen DJ

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最著名的数字表征模型假定,在估计和比较处理之前,数字符号被转换成单一的内部抽象表征。在这里,我们(1)假设模拟表征假设的有效性,对抽象表征假设的预测进行数学分析,(2)运行模拟来评估从我们的数学分析中产生的数据模式,以及(3)进行两个实验,以使用相对频率作为输入来测试该模型的预测。我们在一个典型的数字距离任务中评估相对频率,在这个任务中,参与者被呈现两个相对频率,并被要求识别代表较大数量的那个。我们的数据表明,相对频率的数值表示(1)是模拟的,(2)是特定于尺度的(即,非抽象的)。
The most prominent models of numerical representation posit that numerical symbols are converted into a single internal abstract representation prior to estimation and comparison processing. Here, we (1) provide a mathematical analysis of the predictions of the abstract representation hypothesis assuming the validity of the analogue representation hypothesis, (2) run a simulation to assess the pattern of data that results from our mathematical analysis, and (3) conduct two experiments to test the predictions of that model using relative frequencies as inputs. We assess relative frequencies in a typical numerical distance task, whereby the participants are presented two relative frequencies and asked to identify the one that represents the larger quantity. Our data reveal that relative frequencies’ numerical representations (1) are analogue and (2) are scale-specific (i.e., non-abstract).
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