Neural correlates of conceptualisation difficulties during the preparation of complex utterances.

A. Marek, B. Habets, B.M. Jansma, W. Nager, T.F. Muente

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

Background: In language production, conceptualisation of the utterance precedes lamma retrieval, phonological encoding, and articulation. Knowledge about the neural correlates of conceptualisation is scarce. Aims: The study aimed at the delineation of neurophysiological correlates of the macro-planning aspect of conceptualisation by manipulating difficulty of conceptualisation. Methods
Original languageEnglish
Pages (from-to)1147-1156
JournalAphasiology
Volume21
Issue number12
DOIs
Publication statusPublished - 1 Jan 2007

Cite this

Marek, A. ; Habets, B. ; Jansma, B.M. ; Nager, W. ; Muente, T.F. / Neural correlates of conceptualisation difficulties during the preparation of complex utterances. In: Aphasiology. 2007 ; Vol. 21, No. 12. pp. 1147-1156.
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title = "Neural correlates of conceptualisation difficulties during the preparation of complex utterances.",
abstract = "Background: In language production, conceptualisation of the utterance precedes lamma retrieval, phonological encoding, and articulation. Knowledge about the neural correlates of conceptualisation is scarce. Aims: The study aimed at the delineation of neurophysiological correlates of the macro-planning aspect of conceptualisation by manipulating difficulty of conceptualisation. Methods & Procedures: Utterances were elicited by visual arrays containing a network of eight different shapes ( e. g., circle, square) of different colours. Upon the appearance of an arrow in the display, participants had to describe either the direction of the arrow only ( simple condition), the direction and the destination shape ( medium condition), or the direction, the destination shape, and its colour ( complex condition). Event-related brain potentials ( ERPs) were recorded from young healthy native speakers of German and analysed for epochs starting 100 ms prior to the onset of the arrow stimulus until 600 ms thereafter, i. e., prior to the onset of the vocalisation. ERPs were quantified by mean amplitude measures. Outcomes & Results: ERPs uncontaminated by vocalisation artefacts were obtained. Brain potentials in the medium and complex conditions were more positive going than those from the simple condition from 300 ms onwards. This effect had a centro-parietal distribution akin the P300 component. Conclusions: Reliable electrophysiological effects of conceptualisation difficulty were obtained, opening new possibilities for the neurophysiological investigation of language production in healthy participants and those with non-aphasic language disorders. The distribution of the conceptualisation effect suggests that it reflects general effects of conceptualisation difficulty ( e. g., demand for processing resources) rather than specific steps of the language planning process.",
author = "A. Marek and B. Habets and B.M. Jansma and W. Nager and T.F. Muente",
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Neural correlates of conceptualisation difficulties during the preparation of complex utterances. / Marek, A.; Habets, B.; Jansma, B.M.; Nager, W.; Muente, T.F.

In: Aphasiology, Vol. 21, No. 12, 01.01.2007, p. 1147-1156.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Neural correlates of conceptualisation difficulties during the preparation of complex utterances.

AU - Marek, A.

AU - Habets, B.

AU - Jansma, B.M.

AU - Nager, W.

AU - Muente, T.F.

PY - 2007/1/1

Y1 - 2007/1/1

N2 - Background: In language production, conceptualisation of the utterance precedes lamma retrieval, phonological encoding, and articulation. Knowledge about the neural correlates of conceptualisation is scarce. Aims: The study aimed at the delineation of neurophysiological correlates of the macro-planning aspect of conceptualisation by manipulating difficulty of conceptualisation. Methods & Procedures: Utterances were elicited by visual arrays containing a network of eight different shapes ( e. g., circle, square) of different colours. Upon the appearance of an arrow in the display, participants had to describe either the direction of the arrow only ( simple condition), the direction and the destination shape ( medium condition), or the direction, the destination shape, and its colour ( complex condition). Event-related brain potentials ( ERPs) were recorded from young healthy native speakers of German and analysed for epochs starting 100 ms prior to the onset of the arrow stimulus until 600 ms thereafter, i. e., prior to the onset of the vocalisation. ERPs were quantified by mean amplitude measures. Outcomes & Results: ERPs uncontaminated by vocalisation artefacts were obtained. Brain potentials in the medium and complex conditions were more positive going than those from the simple condition from 300 ms onwards. This effect had a centro-parietal distribution akin the P300 component. Conclusions: Reliable electrophysiological effects of conceptualisation difficulty were obtained, opening new possibilities for the neurophysiological investigation of language production in healthy participants and those with non-aphasic language disorders. The distribution of the conceptualisation effect suggests that it reflects general effects of conceptualisation difficulty ( e. g., demand for processing resources) rather than specific steps of the language planning process.

AB - Background: In language production, conceptualisation of the utterance precedes lamma retrieval, phonological encoding, and articulation. Knowledge about the neural correlates of conceptualisation is scarce. Aims: The study aimed at the delineation of neurophysiological correlates of the macro-planning aspect of conceptualisation by manipulating difficulty of conceptualisation. Methods & Procedures: Utterances were elicited by visual arrays containing a network of eight different shapes ( e. g., circle, square) of different colours. Upon the appearance of an arrow in the display, participants had to describe either the direction of the arrow only ( simple condition), the direction and the destination shape ( medium condition), or the direction, the destination shape, and its colour ( complex condition). Event-related brain potentials ( ERPs) were recorded from young healthy native speakers of German and analysed for epochs starting 100 ms prior to the onset of the arrow stimulus until 600 ms thereafter, i. e., prior to the onset of the vocalisation. ERPs were quantified by mean amplitude measures. Outcomes & Results: ERPs uncontaminated by vocalisation artefacts were obtained. Brain potentials in the medium and complex conditions were more positive going than those from the simple condition from 300 ms onwards. This effect had a centro-parietal distribution akin the P300 component. Conclusions: Reliable electrophysiological effects of conceptualisation difficulty were obtained, opening new possibilities for the neurophysiological investigation of language production in healthy participants and those with non-aphasic language disorders. The distribution of the conceptualisation effect suggests that it reflects general effects of conceptualisation difficulty ( e. g., demand for processing resources) rather than specific steps of the language planning process.

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DO - 10.1080/02687030600646577

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VL - 21

SP - 1147

EP - 1156

JO - Aphasiology

JF - Aphasiology

SN - 0268-7038

IS - 12

ER -