Rotation is visualisation, 3D is 2D: using a novel measure to investigate the genetics of spatial ability.

Shakeshaft, Nicholas G.; Rimfeld, Kaili; Schofield, Kerry L.; Selzam, Saskia; Malanchini, Margherita; Rodic, Maja; Kovas, Yulia and Plomin, Robert. 2016. Rotation is visualisation, 3D is 2D: using a novel measure to investigate the genetics of spatial ability. Scientific Reports, 6, 30545. ISSN 2045-2322 [Article]

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Abstract or Description

Spatial abilities–defined broadly as the capacity to manipulate mental representations of objects and the relations between them–have been studied widely, but with little agreement reached concerning their nature or structure. Two major putative spatial abilities are “mental rotation” (rotating mental models) and “visualisation” (complex manipulations, such as identifying objects from incomplete information), but inconsistent findings have been presented regarding their relationship to one another. Similarly inconsistent findings have been reported for the relationship between two- and three-dimensional stimuli. Behavioural genetic methods offer a largely untapped means to investigate such relationships. 1,265 twin pairs from the Twins Early Development Study completed the novel “Bricks” test battery, designed to tap these abilities in isolation. The results suggest substantial genetic influence unique to spatial ability as a whole, but indicate that dissociations between the more specific constructs (rotation and visualisation, in 2D and 3D) disappear when tested under identical conditions: they are highly correlated phenotypically, perfectly correlated genetically (indicating that the same genetic influences underpin performance), and are related similarly to other abilities. This has important implications for the structure of spatial ability, suggesting that the proliferation of apparent subdomains
may sometimes reflect idiosyncratic tasks rather than meaningful dissociations.

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1 August 2016Published
6 July 2016Accepted

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Date Deposited:

09 Aug 2017 13:32

Last Modified:

03 Aug 2021 15:03

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Yes, this version has been peer-reviewed.


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