Étude du rôle de la mémoire sérielle dans l’acquisition du langage par le paradigme de Hebb
Arnaud SZMALEC (Université Catholique de Louvain)
I will present a series of studies that use the Hebb repetition paradigm to clarify the involvement of human memory in language acquisition. The Hebb repetition effect refers to the improved recall for a repeated (Hebb) sequence of items in an immediate serial recall task, reflecting the gradual transfer of sequential information from short- to long-term memory. First, I will argue that the Hebb repetition effect can be seen as a laboratory analogue of novel word-form learning, based on a number of studies showing that phonological Hebb sequences are chunked into unitary representations that constitute novel entries in the mental lexicon. Second, I will introduce an integrative account of dyslexia which proposes that dyslexia and its various associated cognitive impairments reflect an underlying deficit in the long-term consolidation of serial-order information, operationalized as Hebb repetition learning. Third, I will present some recent findings from a Hebb-learning approach to understanding developmental differences in phonological learning that shed some new light on the sensitive period hypothesis of language acquisition. These findings altogether lead to the conclusion that language development relies on the ability to represent, process and consolidate sequential (or serial-order) information in memory.
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