The bibliographic entry was discovered and compiled by a machine, and published without a person checking it against the publication. The publication itself is the authors' own work — this badge says nothing about it.
From OpenAlex, which stores abstracts as an
index of words and their positions: what is shown is rebuilt from that,
and reads fluently whether or not it is what the author wrote.
Abstract
Thirty thousand years ago, humans kept track of numerical quantities by carving slashes on fragments of bone. It took approximately 25,000 y for the first iconic written numerals to emerge among human cultures (e.g., Sumerian cuneiform). Now, children acquire the meanings of verbal counting words, Arabic numerals, written number words, and the procedures of basic arithmetic operations, such as addition and subtraction, in just 6 y (between ages 2 and 8). What cognitive abilities enabled our ancestors to record tallies in the first place? Additionally, what cognitive abilities allow children to rapidly acquire the formal mathematics knowledge that took our ancestors many millennia to invent? Current research aims to discover the origins and organization of numerical information in humans using clues from child development, the organization of the human brain, and animal cognition.
@misc{cantlon2012math,
title = {Math, monkeys, and the developing brain},
author = {Jessica F. Cantlon},
year = {2012},
journal = {Proceedings of the National Academy of Sciences},
publisher = {National Academy of Sciences},
volume = {109},
number = {supplement_1},
pages = {10725--10732},
doi = {10.1073/pnas.1201893109},
}