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Numerosity and density judgments: biases for area but not for volume

Bell, Jason; Manson, Aaron; Edwards, Mark; Meso, Andrew Isaac

Description

Human observers can rapidly judge the number of items in a scene. This ability is underpinned by specific mechanisms encoding number or density. We investigated whether judgments of number and density are biased by a change in volume, as they are by a change in area. Stimuli were constructed using nonoverlapping black and white luminance-defined dots. An eight-mirror Wheatstone stereoscope was used to present the dots as though in a volume. Using a temporal two-alternative forced-choice (2AFC)...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/12960
Source: Journal of Vision
DOI: 10.1167/15.2.18

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