期刊
COGNITIVE DEVELOPMENT
卷 31, 期 -, 页码 79-95出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cogdev.2014.04.002
关键词
Number processing; Discrete quantity; Continuous quantity; Analog magnitudes; Non-cohesive substances; Great apes
There is substantial evidence for human infants' use of 2 different number processing systems, Object-File System and Approximate Number System; however, the majority of studies of non-human primates reveal processing via Approximate Number System only. The present study investigated whether apes use the Object-File System when tested with an entity-first design, often used in infant studies. Apes' performance was consistently ratio-dependent and showed no sign of an Object-File System, regardless of entity type (rigid and flexible cohesive objects vs. non-cohesive powder and liquid). After ruling out other low-level explanations, our results suggest that great apes relied solely on an Approximate Number System. These results are discussed in light of a possible developmental difference between human infants and adult great apes. (C) 2014 Elsevier Inc. All rights reserved.
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