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Search: L773:0959 4965 OR L773:1473 558X > (2015-2019) > Neural correlates o...

Neural correlates of lexical stress : mismatch negativity reflects fundamental frequency and intensity

Zora, Hatice, 1985- (author)
Stockholms universitet,Avdelningen för fonetik
Schwarz, Iris-Corinna, 1976- (author)
Stockholms universitet,Avdelningen för fonetik
Heldner, Mattias, 1969- (author)
Stockholms universitet,Avdelningen för fonetik
 (creator_code:org_t)
2015
2015
English.
In: NeuroReport. - 0959-4965 .- 1473-558X. ; 26:13, s. 791-796
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Neural correlates of lexical stress were studied using the mismatch negativity (MMN) component in event-related potentials. The MMN responses were expected to reveal the encoding of stress information into long-term memory and the contributions of prosodic features such as fundamental frequency (F0) and intensity toward lexical access. In a passive oddball paradigm, neural responses to changes in F0, intensity, and in both features together were recorded for words and pseudowords. The findings showed significant differences not only between words and pseudowords but also between prosodic features. Early processing of prosodic information in words was indexed by an intensity-related MMN and an F0-related P200. These effects were stable at right-anterior and mid-anterior regions. At a later latency, MMN responses were recorded for both words and pseudowords at the mid-anterior and posterior regions. The P200 effect observed for F0 at the early latency for words developed into an MMN response. Intensity elicited smaller MMN for pseudowords than for words. Moreover, a larger brain area was recruited for the processing of words than for the processing of pseudowords. These findings suggest earlier and higher sensitivity to prosodic changes in words than in pseudowords, reflecting a language-related process. The present study, therefore, not only establishes neural correlates of lexical stress but also confirms the presence of long-term memory traces for prosodic information in the brain.

Subject headings

HUMANIORA  -- Språk och litteratur -- Jämförande språkvetenskap och allmän lingvistik (hsv//swe)
HUMANITIES  -- Languages and Literature -- General Language Studies and Linguistics (hsv//eng)

Keyword

event-related potentials
fundamental frequency
intensity
lexical stress
memory trace
mismatch negativity
pitch
prosody
Linguistics
lingvistik

Publication and Content Type

ref (subject category)
art (subject category)

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Stockholm University

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