10819154

Source:http://linkedlifedata.com/resource/pubmed/id/10819154

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0024400, umls-concept:C0205359, umls-concept:C0237753, umls-concept:C1514861, umls-concept:C1882932
pubmed:issue	1445
pubmed:dateCreated	2000-8-9
pubmed:abstractText	Previous research has shown that animals possess considerable numerical abilities. However, this work was based on experiments involving extensive training, a small number of captive subjects and relatively artificial testing procedures. We present the results of experiments on over 200 semi-free-ranging rhesus monkeys using a task which involves no training and mimics a natural foraging problem. The subjects observed two experimenters place pieces of apple, one at a time, into each of two opaque containers. The experimenters then walked away so that the subjects could approach. The monkeys chose the container with the greater number of apple slices when the comparisons were one versus two, two versus three, three versus four and three versus five slices. They failed at four versus five, four versus six, four versus eight and three versus eight slices. Controls established that it was the representation of number which underlay their successful choices rather than the amount of time spent placing apple pieces into the box or the volume of apple placed in the box. The failures at values greater than three slices stand in striking contrast to other animal studies where training was involved and in which far superior numerical abilities were demonstrated. The range of success achieved by rhesus monkeys in this spontaneous-number task matches the range achieved by human infants and corresponds to the range encoded in the syntax of natural languages.
pubmed:commentsCorrections	http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-11537106, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-1162352, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-1511586, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-16812816, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-2924529, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-3990808, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-6886634, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-7844508, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-8121961, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-8643663, http://linkedlifedata.com/resource/pubmed/commentcorrection/10819154-9784133
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/101245157
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:month	Apr
pubmed:issn	0962-8452
pubmed:author	pubmed-author:CareySS, pubmed-author:HauserL BLB, pubmed-author:HauserM DMD
pubmed:issnType	Print
pubmed:day	22
pubmed:volume	267
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	829-33
pubmed:dateRevised	2010-9-14
pubmed:meshHeading	pubmed-meshheading:10819154-Animals, pubmed-meshheading:10819154-Behavior, Animal, pubmed-meshheading:10819154-Feeding Behavior, pubmed-meshheading:10819154-Female, pubmed-meshheading:10819154-Humans, pubmed-meshheading:10819154-Infant, pubmed-meshheading:10819154-Macaca mulatta, pubmed-meshheading:10819154-Male, pubmed-meshheading:10819154-Mathematics, pubmed-meshheading:10819154-Mental Processes
pubmed:year	2000
pubmed:articleTitle	Spontaneous number representation in semi-free-ranging rhesus monkeys.
pubmed:affiliation	Department of Psychology, Harvard University, Cambridge, MA 02138, USA. hauser@wjh.harvard.edu
pubmed:publicationType	Journal Article, Research Support, U.S. Gov't, Non-P.H.S.