The numerosity and mean size of multiple objects are perceived independently and in parallel
Publication Date
September 28, 2017
Authors
Igor S. Utochkin & Konstantin O. Vostrikov
Volume
12
Issue
9
Pages
e0185452
DOI
https://dx.plos.org/10.1371/journal.pone.0185452
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0185452
Scopus
85030028718
Mendeley
http://www.mendeley.com/research/numerosity-mean-size-multiple-objects-perceived-independently-parallel
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Mendeley | Further Information

{"title"=>"The numerosity and mean size of multiple objects are perceived independently and in parallel", "type"=>"journal", "authors"=>[{"first_name"=>"Igor S.", "last_name"=>"Utochkin", "scopus_author_id"=>"14020843800"}, {"first_name"=>"Konstantin O.", "last_name"=>"Vostrikov", "scopus_author_id"=>"57195913910"}], "year"=>2017, "source"=>"PLoS ONE", "identifiers"=>{"sgr"=>"85030028718", "doi"=>"10.1371/journal.pone.0185452", "pui"=>"618493098", "pmid"=>"28957361", "scopus"=>"2-s2.0-85030028718", "issn"=>"19326203", "isbn"=>"1111111111"}, "id"=>"ec86cbd9-8b05-31d4-b638-0a2c218a3c6d", "abstract"=>"It is well documented that people are good at the rapid representation of multiple objects in the form of ensemble summary statistics of different types (numerosity, the average feature, the variance of features, etc.). However, there is not enough clarity regarding the links between statistical domains. The relations between different-type summaries (numerosity and the mean) are of particular interest, since they can shed light on (1) a very general functional organization of ensemble processing and (2) mechanisms of statistical computations (whether averaging takes into account numerical information, as in regular statistics). Here, we show no correlation between the precision of estimated numerosity and that of the estimated mean. We also found that people are very good at dividing attention between numerosity and the mean size of a single set (Experiment 1); however, they show some cost of dividing attention between two same-type (two numerosities or two mean sizes, Experiment 2) and two different-type (one numerosity and one mean size, Experiment 3) summaries when each summary is ascribed to a different set. These results support the idea of domain specificity of numerosity and mean size perception, which also implies that, unlike regular statistics, computing the mean does not require numerosity information. We also conclude that computational capacity of ensemble statistics is more limited by encoding several ensembles than computing several summaries.", "link"=>"http://www.mendeley.com/research/numerosity-mean-size-multiple-objects-perceived-independently-parallel", "reader_count"=>10, "reader_count_by_academic_status"=>{"Student > Doctoral Student"=>2, "Researcher"=>1, "Student > Ph. D. Student"=>2, "Other"=>1, "Student > Bachelor"=>2, "Unspecified"=>2}, "reader_count_by_user_role"=>{"Student > Doctoral Student"=>2, "Researcher"=>1, "Student > Ph. D. Student"=>2, "Other"=>1, "Student > Bachelor"=>2, "Unspecified"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>3, "Neuroscience"=>1, "Psychology"=>6}, "reader_count_by_subdiscipline"=>{"Neuroscience"=>{"Neuroscience"=>1}, "Psychology"=>{"Psychology"=>6}, "Unspecified"=>{"Unspecified"=>3}}, "group_count"=>0}

Scopus | Further Information

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