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Abstract:
One central question in psycholinguistic research is when the
various types of information (conceptual/semantic, syntactic, and
phonological) involved in speaking become available during the
process of speech planning. Here we investigated the relative time
course of phonological encoding in an implicit picture-naming task
in Dutch using event-related brain potentials (ERPs). Participants
saw a series of pictures and made dual choice go/no-go decisions
about each picture name's stress position (whether the depicted
item had initial or final stress; e.g., "lépel" [initial
stress] vs. "libel" [final stress]) and the syllabic position of
the first post-vocalic consonant (whether this consonant belonged
to the first or to the second syllable; e.g., kánsel [the
"n" belongs to the first syllable] vs. káno [the "n" belongs
to the second syllable]). We will present data derived from the
N200 (related to response inhibition) that support the distinction
of two independent processes in phonological encoding during speech
production. The results will be discussed in relation to a theory
of speech production.
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