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Range dependent processing of visual numerosity: similarities across vision and haptics

机译:视域数字视域的范围依赖处理:视觉和触觉之间的相似性

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摘要

‘Subitizing’ refers to fast and accurate judgement of small numerosities, whereas for larger numerosities either counting or estimation are used. Counting is slow and precise, whereas estimation is fast but imprecise. In this study consisting of five experiments we investigated if and how the numerosity judgement process is affected by the relative spacing between the presented numerosities. To this end we let subjects judge the number of dots presented on a screen and recorded their response times. Our results show that subjects switch from counting to estimation if the relative differences between subsequent numerosities are large (a factor of 2), but that numerosity judgement in the subitizing range was still faster. We also show this fast performance for small numerosities only occurred when numerosity information is present. This indicates this is typical for number processing and not magnitude estimation in general. Furthermore, comparison with a previous haptic study suggests similar processing in numerosity judgement through haptics and vision.
机译:“替代”是指快速准确地判断小数量,而对于大数量则使用计数或估计。计数是缓慢而精确的,而估计是快速但不精确的。在由五个实验组成的这项研究中,我们研究了数字判断过程是否以及如何受到所提出的数字之间的相对间距的影响。为此,我们让受试者判断屏幕上显示的点数并记录其响应时间。我们的结果表明,如果随后的数字之间的相对差异较大(2倍),则受试者从计数转换为估计,但是在替代范围内的数字判断仍然更快。我们还展示了仅在存在数字信息时才发生的小数字快速性能。这表明这是典型的数字处理,而不是一般的幅度估计。此外,与以前的触觉研究进行比较表明,通过触觉和视觉在数字能力判断中的处理类似。

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