| Title |
Number-space mapping in the newborn chick resembles humans’ mental number line
|
|---|---|
| Published in |
Science, January 2015
|
| DOI | 10.1126/science.aaa1379 |
| Pubmed ID | |
| Authors |
Rosa Rugani, Giorgio Vallortigara, Konstantinos Priftis, Lucia Regolin |
| Abstract |
Humans represent numbers along a mental number line (MNL), where smaller values are located on the left and larger on the right. The origin of the MNL and its connections with cultural experience are unclear: Pre-verbal infants and nonhuman species master a variety of numerical abilities, supporting the existence of evolutionary ancient precursor systems. In our experiments, 3-day-old domestic chicks, once familiarized with a target number (5), spontaneously associated a smaller number (2) with the left space and a larger number (8) with the right space. The same number (8), though, was associated with the left space when the target number was 20. Similarly to humans, chicks associate smaller numbers with the left space and larger numbers with the right space. |
X Demographics
The data shown below were collected from the profiles of 118 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Japan | 14 | 12% |
| United Kingdom | 9 | 8% |
| United States | 9 | 8% |
| Netherlands | 5 | 4% |
| Spain | 3 | 3% |
| Italy | 3 | 3% |
| Canada | 2 | 2% |
| India | 2 | 2% |
| Australia | 1 | <1% |
| Other | 11 | 9% |
| Unknown | 59 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 84 | 71% |
| Scientists | 27 | 23% |
| Science communicators (journalists, bloggers, editors) | 4 | 3% |
| Practitioners (doctors, other healthcare professionals) | 3 | 3% |
Mendeley readers
The data shown below were compiled from readership statistics for 252 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 5 | 2% |
| United States | 4 | 2% |
| France | 3 | 1% |
| Spain | 3 | 1% |
| Switzerland | 1 | <1% |
| Hungary | 1 | <1% |
| Italy | 1 | <1% |
| Japan | 1 | <1% |
| Luxembourg | 1 | <1% |
| Other | 0 | 0% |
| Unknown | 232 | 92% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 56 | 22% |
| Researcher | 45 | 18% |
| Student > Bachelor | 22 | 9% |
| Student > Master | 21 | 8% |
| Student > Doctoral Student | 14 | 6% |
| Other | 46 | 18% |
| Unknown | 48 | 19% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 86 | 34% |
| Neuroscience | 30 | 12% |
| Agricultural and Biological Sciences | 28 | 11% |
| Arts and Humanities | 6 | 2% |
| Computer Science | 6 | 2% |
| Other | 35 | 14% |
| Unknown | 61 | 24% |
Attention Score in Context
This research output has an Altmetric Attention Score of 627. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 February 2024.
All research outputs
#36,336
of 25,866,425 outputs
Outputs from Science
#1,537
of 83,366 outputs
Outputs of similar age
#311
of 363,447 outputs
Outputs of similar age from Science
#27
of 1,195 outputs
Altmetric has tracked 25,866,425 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 83,366 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 66.1. This one has done particularly well, scoring higher than 98% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 363,447 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 1,195 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 97% of its contemporaries.