Lemurs and macaques show similar numerical sensitivity.

Lemurs and macaques show similar numerical sensitivity.
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DOI:
10.1007/s10071-013-0682-3
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发表时间:
2014-05
期刊:
影响因子:
2.7
通讯作者:
Brannon, Elizabeth M.
Brannon, Elizabeth M.
中科院分区:
生物学2区
文献类型:
--
作者:
Jones, Sarah M.;Pearson, John;DeWind, Nicholas K.;Paulsen, David;Tenekedjieva, Ana-Maria;Brannon, Elizabeth M.

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We investigated the precision of the approximate number system (ANS) in three lemur species (Lemur catta, Eulemur mongoz, and Eulemur macaco flavifrons), one Old World monkey species (Macaca mulatta) and humans (Homo sapiens). In Experiment 1, four individuals of each nonhuman primate species were trained to select the numerically larger of two visual arrays on a touchscreen. We estimated numerical acuity by modeling Weber fractions (w) and found quantitatively equivalent performance among all four nonhuman primate species. In Experiment 2, we tested adult humans in a similar procedure, and they outperformed the four nonhuman species but showed qualitatively similar performance. These results indicate that the ANS is conserved over the primate order.
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