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Phonological activation of category coordinates during speech planning is observable in children but not in adults: Evidence for cascaded processing

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Hahne,  Anja
Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Hoffmann,  Stefanie
Department Cognitive Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Citation

Jescheniak, J. D., Hahne, A., Hoffmann, S., & Wagner, V. (2006). Phonological activation of category coordinates during speech planning is observable in children but not in adults: Evidence for cascaded processing. Journal of Experimental Psychology: Learning, Memory, and Cognition, 32(2), 373-386. doi:10.1037/0278-7393.32.3.373.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-D0A4-D
Abstract
There is a long-standing debate in the area of speech production on the question of whether only words selected for articulation are phonologically activated (as maintained by serial-discrete models) or whether this is also true for their semantic competitors (as maintained by forward-cascading and interactive models). Past research has addressed this issue by testing whether retrieval of a target word (e.g., cat) affects--or is affected by--the processing of a word that is phonologically related to a semantic category coordinate of the target (e.g., doll, related to dog) and has consistently failed to obtain such mediated effects in adult speakers. The authors present a series of experiments demonstrating that mediated effects are present in children (around age 7) and diminish with increasing age. This observation provides further evidence for cascaded models of lexical retrieval.