Phylogenetic roots of quantity processing: Apes do not rely on object indexing to process quantities

Cacchione, Trix; Hrubesch, Christine; Call, Josep (2014). Phylogenetic roots of quantity processing: Apes do not rely on object indexing to process quantities. Cognitive development, 31, pp. 79-95. Elsevier 10.1016/j.cogdev.2014.04.002

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Psychology > Developmental Psychology

UniBE Contributor:

Cacchione, Beatrix and Hrubesch, Christine

Subjects:

100 Philosophy > 150 Psychology

ISSN:

0885-2014

Publisher:

Elsevier

Language:

English

Submitter:

Sufi Abbaspour Chinjani

Date Deposited:

17 Aug 2016 09:11

Last Modified:

26 Jun 2017 11:24

Publisher DOI:

10.1016/j.cogdev.2014.04.002

BORIS DOI:

10.7892/boris.85855

URI:

https://boris.unibe.ch/id/eprint/85855

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