UNIGE document Scientific Article
previous document  unige:30073  next document
add to browser collection
Title

Adults and 5-year-old children draw rectangles and triangles around a prototype but not in the golden ratio

Authors
Kalénine, Solène
Izard, Véronique
Published in British Journal of Psychology. 2012, vol. 104, no. 3, p. 400-412
Abstract This study uses a production task to probe the representations of two geometrical shape categories (rectangles and triangles) in adults and children before the onset of geometry instruction. We specifically assessed whether drawings of these shapes would average around a prototype and whether the prototypical side-length ratio of the shapes would be situated in the range of the 'golden ratio', as it has been reported in the perception domain. We asked 78 adults and 68 five-year-old children to draw one rectangle and one triangle. In both populations, the prototypical rectangle was horizontally oriented with a ratio between sides superior to the 'golden' value of 1.62. For the triangle, both children and adults tended to produce horizontal acute isosceles triangles with a ratio inferior to the golden value. These findings suggest that adults' and children's shape categories of triangles and rectangles are organized around a prototypical shape, but the characteristics of this prototype may differ to a certain extent with the ones observed in previous perceptual tasks. Implications of this perception/production dissociation for length concept development, as well as the potential origins of these prototypes are discussed.
Identifiers
PMID: 23848389
Full text
Article (Published version) (626 Kb) - document accessible for UNIGE members only Limited access to UNIGE
Structures
Research groups Unité de psychologie clinique et neuropsychologie de l'enfant (UPCNE)
Laboratoire du développement sensori-moteur, affectif et social (SMAS)
Citation
(ISO format)
KALÉNINE, Solène et al. Adults and 5-year-old children draw rectangles and triangles around a prototype but not in the golden ratio. In: British Journal of Psychology, 2012, vol. 104, n° 3, p. 400-412. https://archive-ouverte.unige.ch/unige:30073

217 hits

2 downloads

Update

Deposited on : 2013-10-01

Export document
Format :
Citation style :