EEG brain mapping of phonological and semantic tasks in Italian and German languages

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Angrilli_et_al_2000.pdf
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2000
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Angrilli, Alessandro
Dobel, Christian
Stegagno, Luciano
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Clinical Neurophysiology. 2000, 111, pp. 706-716. Available under: doi: 10.1016/S1388-2457(99)00308-9
Zusammenfassung

Objectives: Event-related potential correlates of phonological encoding ± as compared with lexical access and semantic categorization - were measured in two studies involving two groups of 14 German and 14 Italian subjects.
Methods: A two stimulus reaction time paradigm was used. Stimulus pairs presented one-by-one with 2 s inter-stimulus intervals (ISI) had to be matched with respect to lexical identity (word-picture) in a word comprehension task or with respect to the phonological representative of objects in a rhyming task. A semantic categorization task was added for the Italian sample. In both studies, the EEG was recorded from 26 scalp electrodes according to the 10±20 system. The slow negative potential during the ISI (CNV) was determined as the electrocortical correlate of preparation for and activation of the speci®c language-related task.
Results: In both samples, phonological encoding (rhyming) evoked a more pronounced CNV over the left- compared with the right-frontal area, while less lateralized central dominance of the CNV was found in the word comprehension task. Semantic categorization was accompanied by the least asymmetry of activity.
Conclusions: Results indicate that the different degree of asymmetry induced by phonological and semantic processing may be determined from the scalp distribution of slow cortical potentials with cross-lingual reliability.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
150 Psychologie
Schlagwörter
Langsame kortikale Potenziale, Phonologische Kodierung, Semantische Verarbeitung, Lexikalischer Zugang, Sprache, Slow cortical potentials, Phonological encoding, Semantic processing, Lexical access, Language
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ISO 690ANGRILLI, Alessandro, Christian DOBEL, Brigitte ROCKSTROH, Luciano STEGAGNO, Thomas ELBERT, 2000. EEG brain mapping of phonological and semantic tasks in Italian and German languages. In: Clinical Neurophysiology. 2000, 111, pp. 706-716. Available under: doi: 10.1016/S1388-2457(99)00308-9
BibTex
@article{Angrilli2000brain-10158,
  year={2000},
  doi={10.1016/S1388-2457(99)00308-9},
  title={EEG brain mapping of phonological and semantic tasks in Italian and German languages},
  volume={111},
  journal={Clinical Neurophysiology},
  pages={706--716},
  author={Angrilli, Alessandro and Dobel, Christian and Rockstroh, Brigitte and Stegagno, Luciano and Elbert, Thomas}
}
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