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Szubielska, Magdalena; Niestorowicz, Ewa; Marek, Boguslaw – Journal of Visual Impairment & Blindness, 2019
Introduction: The aim of this study was to determine whether individuals with congenital blindness make more recognizable drawings of known objects that are furniture sized (table, man, tree) rather than hand sized (egg, coconut, banana; Hypothesis 1). We also investigated whether knowledge that the tactile drawings had been produced by people who…
Descriptors: Geometric Concepts, Congenital Impairments, Blindness, Freehand Drawing

Soroka, Sherri MacKay; And Others – Child Development, 1979
Forty 10-month-old infants were given two minutes to explore tactually an object in a totally darkened room. Subsequently, during a two-minute test trial in the dark, 10 infants were given the same object and 10 were given a novel shape. Novel shapes were manipulated significantly longer than familiar forms. (RH)
Descriptors: Foreign Countries, Infants, Novelty (Stimulus Dimension), Object Manipulation

Streri, Arlette; Spelke, Elizabeth S. – Cognitive Psychology, 1988
Four experiments studied the perception of the unity and boundaries of objects by 88 4-month-old infants who manipulated them out of the visual field. Infants perceived the unity/boundaries of these objects by detecting the motion patterns they themselves produced. Discrimination between motion patterns transferred from touch to vision. (SLD)
Descriptors: Foreign Countries, Infants, Object Manipulation, Perceptual Development