Similarly oriented objects appear more numerous | Zendy

Nicholas K. DeWind | Zendy; Michael Bonner | Zendy; Elizabeth M. Bran | Zendy

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Similarly oriented objects appear more numerous

Author(s) -

Nicholas K. DeWind,

Michael Bonner,

Elizabeth M. Bran

Publication year - 2020

Publication title -

journal of vision

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.126

H-Index - 113

ISSN - 1534-7362

DOI - 10.1167/jov.20.4.4

Subject(s) - numerosity adaptation effect , illusion , coherence (philosophical gambling strategy) , parametric statistics , orientation (vector space) , computer science , optical illusion , cognitive psychology , computer simulation , artificial intelligence , mathematics , computer vision , psychology , statistics , simulation , perception , geometry , neuroscience

Several non-numerical factors influence the numerical estimation of visual arrays, including the spacing of items and whether they are arranged randomly or symmetrically. Here we report a novel numerosity illusion we term the coherence illusion . When items in an array have a coherent orientation (all pointing in the same direction) they seem to be more numerous than when items are oriented randomly. Participants show parametric effects of orientation coherence in three distinct numerical judgment tasks. These findings are not predicted by any current model of numerical estimation. We discuss array entropy as a possible framework for explaining both the coherence illusion and the previously reported regular-random illusion.

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