Looking for more food or more people? Task context influences basic numerosity perception
Looking for more food or more people? Task context influences basic numerosity perception
复制标题
寻找更多食物还是更多人？
DOI：
10.1016/j.cortex.2018.05.021
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发表时间：
2019
期刊：
影响因子：
3.6
通讯作者：
Park, Joonkoo
中科院分区：
文献类型：
--
作者：
Fornaciai, Michele;Farrell, Abigail;Park, Joonkoo
近似数值大小（或数量）被认为代表驱动感知选择的基本感官特性之一。最近的研究表明，对点阵列的数量判断主要由其数字大小驱动，很大程度上独立于其其他非数字视觉维度。然而，这些发现并不排除非数字线索（例如点阵列的大小或间距）影响数字判断的可能性。在这里，我们测试了这样一个假设：数字判断受到点阵列的非数字维度的影响，具体取决于这些非数字线索可能有用的上下文。参与者被要求在仅在一方面不同的两种不同背景下选择数量较多的两个点阵列。在一种情况下，任务被定义为选择一组有更多水果可供食用的组合。在另一种情况下，任务被定义为选择一个有更多人加入的小组。结果表明，当参与者对人做出定量选择时，非数字线索（尤其是尺寸维度）的影响明显小于他们对食物做出选择时的影响，这说明在前一种情况下，离散量值的表示更为明显。这些发现表明，为做出有关数量的决定而汇集的信息是根据这种判断的背景和目标灵活确定的。
Approximate numerical magnitude (or numerosity) is thought to represent one of the fundamental sensory properties driving perceptual choices. Recent studies indicate that numerosity judgment on a dot array is primarily driven by its numerical magnitude, largely independent from its other non-numerical visual dimensions. Nevertheless, these findings do not preclude the possibility that non-numerical cues such as size or spacing of a dot array influence numerosity judgment. Here, we test the hypothesis that numerosity judgment is influenced by non-numerical dimensions of a dot array depending on the context to which those non-numerical cues could be useful. Participants were asked to choose the more numerous of two dot arrays in two different contexts that differed only in one aspect. In one condition, the task was framed as choosing a set with more fruits to consume. In the other condition, the task was framed as choosing a group with more people to join. The results demonstrate that the influence of non-numerical cues – and particularly of the dimension of size – was significantly smaller when participants made quantitative choices about people than when they made choices about food, illustrating that the representation of discrete magnitude is more pronounced in the former case. These findings suggest that the information pooled to reach a decision about numerosity is flexibly determined according to the context and the goals of such judgment.
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影响因子：
8.2
作者：
Piantadosi ST;Cantlon JF
通讯作者：
Cantlon JF
在各种干密度范围内测量各种膨润土的水力传导率，2007/07
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
大森浩司;小峯秀雄;安原一哉;村上哲;小峯秀雄・安原一哉・村上 哲・佛田理恵・山口憲治・竹内靖典;小峯秀雄・安原一哉・村上 哲・佛田理恵・山口憲治・竹内靖典
通讯作者：
小峯秀雄・安原一哉・村上 哲・佛田理恵・山口憲治・竹内靖典
DOI：
10.1073/pnas.1308141110
发表时间：
2013-07-02
影响因子：
11.1
作者：
Viswanathan, Pooja;Nieder, Andreas
通讯作者：
Nieder, Andreas
影响因子：
--
作者：
Brainard, DH
通讯作者：
Brainard, DH
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
D. Rahnev
通讯作者：
D. Rahnev