Forehearing words : Pre-activation of word endings at word onset
(2017) In Neuroscience Letters 658. p.57-61- Abstract
- Occurring at rates up to 6-7 syllables per second, speech perception and understanding involves rapid identification of speech sounds and pre-activation of morphemes and words. Using event-related potentials (ERPs) and functional magnetic resonance imaging (fMRI), we investigated the time-course and neural sources of pre-activation of word endings as participants heard the beginning of unfolding words. ERPs showed a pre-activation negativity (PrAN) for word beginnings (first two segmental phonemes) with few possible completions. PrAN increased gradually as the number of possible completions of word onsets decreased and the lexical frequency of the completions increased. The early brain potential effect for few possible word completions was... (More)
- Occurring at rates up to 6-7 syllables per second, speech perception and understanding involves rapid identification of speech sounds and pre-activation of morphemes and words. Using event-related potentials (ERPs) and functional magnetic resonance imaging (fMRI), we investigated the time-course and neural sources of pre-activation of word endings as participants heard the beginning of unfolding words. ERPs showed a pre-activation negativity (PrAN) for word beginnings (first two segmental phonemes) with few possible completions. PrAN increased gradually as the number of possible completions of word onsets decreased and the lexical frequency of the completions increased. The early brain potential effect for few possible word completions was associated with a blood-oxygen-level-dependent (BOLD) contrast increase in Broca’s area (pars opercularis of the left inferior frontal gyrus) and angular gyrus of the left parietal lobe. We suggest early involvement of the left prefrontal cortex in inhibiting irrelevant left parietal activation during lexical selection. The results further our understanding of the importance of Broca’s area in rapid online pre-activation of words. (Less)
- Abstract (Swedish)
- Occurring at rates up to 6-7 syllables per second, speech perception and understanding involves rapid identification of speech sounds and pre-activation of morphemes and words. Using event-related potentials (ERPs) and functional magnetic resonance imaging (fMRI), we investigated the time-course and neural sources of pre-activation of word endings as participants heard the beginning of unfolding words. ERPs showed a pre-activation negativity (PrAN) for word beginnings (first two segmental phonemes) with few possible completions. PrAN increased gradually as the number of possible completions of word onsets decreased and the lexical frequency of the completions increased. The early brain potential effect for few possible word completions was... (More)
- Occurring at rates up to 6-7 syllables per second, speech perception and understanding involves rapid identification of speech sounds and pre-activation of morphemes and words. Using event-related potentials (ERPs) and functional magnetic resonance imaging (fMRI), we investigated the time-course and neural sources of pre-activation of word endings as participants heard the beginning of unfolding words. ERPs showed a pre-activation negativity (PrAN) for word beginnings (first two segmental phonemes) with few possible completions. PrAN increased gradually as the number of possible completions of word onsets decreased and the lexical frequency of the completions increased. The early brain potential effect for few possible word completions was associated with a blood-oxygen-level-dependent (BOLD) contrast increase in Broca’s area (pars opercularis of the left inferior frontal gyrus) and angular gyrus of the left parietal lobe. We suggest early involvement of the left prefrontal cortex in inhibiting irrelevant left parietal activation during lexical selection. The results further our understanding of the importance of Broca’s area in rapid online pre-activation of words. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/f9f22ccc-2680-4092-b00a-6e19552f8096
- author
- Roll, Mikael
LU
; Söderström, Pelle
LU
; Frid, Johan
LU
; Mannfolk, Peter LU and Horne, Merle LU
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- language, Broca's area, pre-activation, pre-activation negativity, PrAN, lexical selection, language, Broca’s area, pre-activation, pre-activation negativity (PrAN), lexical selection
- in
- Neuroscience Letters
- volume
- 658
- pages
- 57 - 61
- publisher
- Elsevier
- external identifiers
-
- scopus:85028080040
- pmid:28823890
- wos:000414115200011
- ISSN
- 0304-3940
- DOI
- 10.1016/j.neulet.2017.08.030
- project
- Tone-Grammar Interaction in the Human Brain: Mechanisms and Applications
- The language melody game (LMG): Learning Swedish word accents using IT and digital media
- SWE-CLARIN: Svensk språkteknologi för humaniora och samhällsvetenskap
- language
- English
- LU publication?
- yes
- id
- f9f22ccc-2680-4092-b00a-6e19552f8096
- date added to LUP
- 2017-08-21 14:45:18
- date last changed
- 2023-11-17 03:03:34
@article{f9f22ccc-2680-4092-b00a-6e19552f8096, abstract = {{Occurring at rates up to 6-7 syllables per second, speech perception and understanding involves rapid identification of speech sounds and pre-activation of morphemes and words. Using event-related potentials (ERPs) and functional magnetic resonance imaging (fMRI), we investigated the time-course and neural sources of pre-activation of word endings as participants heard the beginning of unfolding words. ERPs showed a pre-activation negativity (PrAN) for word beginnings (first two segmental phonemes) with few possible completions. PrAN increased gradually as the number of possible completions of word onsets decreased and the lexical frequency of the completions increased. The early brain potential effect for few possible word completions was associated with a blood-oxygen-level-dependent (BOLD) contrast increase in Broca’s area (pars opercularis of the left inferior frontal gyrus) and angular gyrus of the left parietal lobe. We suggest early involvement of the left prefrontal cortex in inhibiting irrelevant left parietal activation during lexical selection. The results further our understanding of the importance of Broca’s area in rapid online pre-activation of words.}}, author = {{Roll, Mikael and Söderström, Pelle and Frid, Johan and Mannfolk, Peter and Horne, Merle}}, issn = {{0304-3940}}, keywords = {{language; Broca's area; pre-activation; pre-activation negativity; PrAN; lexical selection; language; Broca’s area; pre-activation; pre-activation negativity (PrAN); lexical selection}}, language = {{eng}}, pages = {{57--61}}, publisher = {{Elsevier}}, series = {{Neuroscience Letters}}, title = {{Forehearing words : Pre-activation of word endings at word onset}}, url = {{https://lup.lub.lu.se/search/files/30412345/Rolletal2017_NeurosciLett.pdf}}, doi = {{10.1016/j.neulet.2017.08.030}}, volume = {{658}}, year = {{2017}}, }