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La synesthésie chez l'enfant : prévalence, aspects développementaux et cognitifs

Abstract : Synaesthetes have the peculiarity of associating a supplementary experience (e.g. the colour green) when certain stimuli are presented (e.g. the letter F). The aim of this thesis was to better understand the development of synaesthesia through three types: Grapheme–Colour, Grapheme–Personality and the representation of numbers in space.We collected the graphical representations of 797 children from Kindergarten, 1st Grade, and 2nd Grade twice, at 2-3 weeks interval. To test the hypothesis of a continuum between synaesthetes and the general population, we also studied the associations of non-synaesthete children. We reported the methodological problems specific to the study of synaesthesia in 5 to 8 years old children. We could not definitely attest the existence of synaesthesia in this age group. But we observed a growing number of potential synaesthetes in each grade, as well as a low consistency level of their associations in comparison with adults. Since children know well letters and numbers, at least in the 2nd grade, we can consider that these types of synaesthesia are not only linked to the acquisition of their inducers themselves. But they could develop during harder acquisitions (numeracy or literacy) or with the development of mental imagery and associative memory.
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Marie-Margeride Garnier. La synesthésie chez l'enfant : prévalence, aspects développementaux et cognitifs. Psychologie. Université Toulouse le Mirail - Toulouse II, 2016. Français. ⟨NNT : 2016TOU20004⟩. ⟨tel-01724729⟩

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