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    Beyond Core Knowledge: Natural Geometry.Elizabeth Spelke, Sang Ah Lee & Véronique Izard - 2010 - Cognitive Science 34 (5):863-884.
    For many centuries, philosophers and scientists have pondered the origins and nature of human intuitions about the properties of points, lines, and figures on the Euclidean plane, with most hypothesizing that a system of Euclidean concepts either is innate or is assembled by general learning processes. Recent research from cognitive and developmental psychology, cognitive anthropology, animal cognition, and cognitive neuroscience suggests a different view. Knowledge of geometry may be founded on at least two distinct, evolutionarily ancient, core cognitive systems for (...)
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  2. Navigation as a source of geometric knowledge: Young children’s use of length, angle, distance, and direction in a reorientation task.Sang Ah Lee, Valeria A. Sovrano & Elizabeth S. Spelke - 2012 - Cognition 123 (1):144-161.
  3. A modular geometric mechanism for reorientation in children.Sang Ah Lee & Elizabeth S. Spelke - unknown
    Although disoriented young children reorient themselves in relation to the shape of the surrounding surface layout, cognitive accounts of this ability vary. The present paper tests three theories of reorientation: a snapshot theory based on visual image-matching computations, an adaptive combination theory proposing that diverse environmental cues to orientation are weighted according to their experienced reliability, and a modular theory centering on encapsulated computations of the shape of the extended surface layout. Seven experiments test these theories by manipulating four properties (...)
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  4. Young children reorient by computing layout geometry, not by matching images of the environment.Sang Ah Lee & Elizabeth S. Spelke - unknown
    Disoriented animals from ants to humans reorient in accord with the shape of the surrounding surface layout: a behavioral pattern long taken as evidence for sensitivity to layout geometry. Recent computational models suggest, however, that the reorientation process may not depend on geometrical analyses but instead on the matching of brightness contours in 2D images of the environment. Here we test this suggestion by investigating young children's reorientation in enclosed environments. Children reoriented by extremely subtle geometric properties of the 3D (...)
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  5. Evidence for Two Systems.Sang Ah Lee, Anna Shusterman & Elizabeth S. Spelke - unknown
    ��Disoriented 4-year-old children use a distinctive container to locate a hidden object, but do they reorient by this information? We addressed this question by testing children’s search for objects in a circular room containing one distinctive and two identical containers. Children’s search patterns provided evidence that the distinctive container served as a direct cue to a hidden object’s location, but not as a directional signal guiding reorientation. The findings suggest that disoriented children’s search behavior depends on two distinct processes: a (...)
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