Preattentive phonotactic processing as indexed by the mismatch negativity
Publication date
2010-10
Document type
Research article
Author
Organisational unit
ISSN
Series or journal
Journal of cognitive neuroscience
Periodical volume
22
Periodical issue
10
First page
2174
Last page
2185
Peer-reviewed
✅
Part of the university bibliography
✅
DDC Class
150 Psychologie
Keyword
Speech sounds
Perception
Assimilation
Representations
Brain
MMN
Abstract
Processing of an obligatory phonotactic restriction outside the focus of the participants ' attention was investigated by means of ERPs using (reversed) experimental oddball blocks. Dorsal fricative assimilation (DFA) is a phonotactic constraint in German grammar that is violated in *[epsilon x] but not in [ox], [epsilon integral], and [o integral]. These stimulus sequences engage the auditory deviance detection mechanism as reflected by the MMN component of the ERP. In Experiment 1 (n= 16), stimuli were contrasted pairwise such that they shared the initial vowel but differed with regard to the fricative. Phonotactically ill- formed deviants elicited stronger MMN re-sponses than well-formed deviants that differed acoustically in the sameway fromthe standard stimulation but did not contain a phonotactic violation. In Experiment 2 (n = 16), stimuli were contrasted such that they differed with regard to the vowel but shared the fricative. MMN was elicited by the vowel change. An additional, laterMMN response was observed for the phonotactically ill-formed syllable only. This MMN cannot be attributed to any phonetic or segmental difference between standard and deviant. These findings suggest that implicit phonotactic knowledge is activated and applied in preattentive speech processing.
Version
Published version
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