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The distance effect on discrimination ability and response bias during magnitude comparison in a go/no-go task
Attention, Perception, & Psychophysics ( IF 1.7 ) Pub Date : 2021-03-23 , DOI: 10.3758/s13414-021-02274-5
Ilgım Hepdarcan , Merve Bulut , Ezgi Palaz , Seda Can , Seda Dural

The distance effect is the change in the performance during numerical magnitude comparison, depending on the numerical distance between the compared numbers (Moyer & Landauer, Nature, 215[5109], 1519–1520, 1967). This effect is generally accepted as evidence for the mental number line (MNL) hypothesis, which proposes that the mental representation of the numbers align in an increasing linear (or monotone) order. The majority of studies investigating the distance effect are focused on the reaction time (RT) findings, which show slower responses for closer numbers. In the present study, we examined the distance effect by applying signal detection theory (SDT) to a magnitude comparison task. We aimed to reveal whether discrimination ability and the response bias measures were affected by the location of numbers on the MNL. To accomplish this, we developed a magnitude comparison task using a go/no-go procedure in which participants performed a magnitude comparison based on a reference number (i.e., 5). Results revealed a substantial distance effect in both sensitivity and response bias measures—a better discrimination performance for far numbers, and a larger response bias for close numbers. In addition, an RT distribution analysis revealed that the distance effect seems to originate mainly from slower responses. Based on the current data, we suggest that sensitivity and response bias measures could offer comprehensive information in the understanding of number-based decisions.



中文翻译:

进行/不执行任务中幅度比较过程中距离对辨别能力和响应偏差的影响

距离效应是数值幅度比较期间性能的变化,具体取决于所比较数字之间的数值距离(Moyer&Landauer,Nature,215[5109],1515-1520年,1967年)。这种效果通常被认为是心理数字线(MNL)假设的证据,该假设提出数字的心理表示按线性(或单调)顺序递增排列。大多数研究距离影响的研究都集中在反应时间(RT)的发现上,对于更接近的数字,反应时间较慢。在本研究中,我们通过将信号检测理论(SDT)应用于幅度比较任务来研究距离效应。我们旨在揭示歧视能力和回应偏倚措施是否受到MNL上数字位置的影响。为此,我们使用“通过/不通过”程序开发了一个幅度比较任务,其中参与者根据参考数字(即5)执行幅度比较。结果表明,在灵敏度和响应偏差度量方面,距离效应均显着-远距离数字的更好辨别性能,近距离数字的更大响应偏差。此外,RT分布分析表明,距离效应似乎主要来自较慢的响应。根据当前数据,我们建议敏感性和响应偏差度量可以在理解基于数字的决策时提供全面的信息。

更新日期:2021-03-24
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