Summation of large numerousness by newborn chicks

Newly-hatched domestic chicks, reared with identical objects, when presented with sets of 3 vs. 2 objects disappearing one-by-one behind separate screens, spontaneously inspected the screen occluding the larger set; even when the continuous variables (area or perimeter) were controlled for (Rugani...

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Bibliographic Details
Main Authors: Rosa eRugani, Lucia eRegolin, Giorgio eVallortigara
Format: Article
Language:English
Published: Frontiers Media S.A. 2011-09-01
Series:Frontiers in Psychology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpsyg.2011.00179/full