"Groupitizing": a strategy for numerosity estimation

被引：36

作者：

Anobile, Giovanni ^{[1
]}

Castaldi, Elisa ^{[1
,2
]}

Moscoso, Paula A. Maldonado ^{[1
]}

Burr, David C. ^{[1
,3
]}

Arrighi, Roberto ^{[1
]}

机构：

[1] Univ Florence, Dept Neurosci Psychol Pharmacol & Child Hlth, Florence, Italy

[2] Univ Pisa, Dept Translat Res & New Technol Med & Surg, Pisa, Italy

[3] Inst Neurosci, Natl Res Council, Pisa, Italy

来源：

SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期

基金：

欧盟地平线“2020”;

关键词：

NUMBER; DISCRIMINATION; ATTENTION; CORRELATE; ACUITY;

D O I：

10.1038/s41598-020-68111-1

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Previous work has shown that when arrays of objects are grouped within clusters, participants can enumerate their numerosity more rapidly than when objects are randomly scattered, a phenomenon termed "groupitizing". Importantly, the magnitude of the grouping advantage correlates with math abilities in children. Here we show that sensory precision of numerosity estimation is also improved when grouping cues are available, by up to 20%. The grouping can be induced by color and/or spatial proximity, and occurs in temporal sequences as well as spatial arrays. The improvement is strongest for participants with the highest thresholds in the random, ungrouped conditions. Taken together with previous research, our data suggest that measurements correlations between numerosity estimation and formal math skills may be driven by grouping strategies, which require a minimal level of basic arithmetic.

引用

页数：9

共 33 条

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