Publikation:

Magnetic brain activity evoked and induced by visually presented words and nonverbal stimuli

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Eulitz_etal2000_EvokedIndu.pdf
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2000

Autor:innen

Eulitz, Hind
Maess, Burkhard
Pantev, Christo

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-21398
DOI (zitierfähiger Link)
https://doi.org/10.1111/1469-8986.3740447
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Published

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Psychophysiology. 2000, 37, pp. 447-455. Available under: doi: 10.1111/1469-8986.3740447

Zusammenfassung

Evoked and induced magnetic brain activity measured over the left hemisphere were tested for their specificity to language-related processing. Induced activity refers to oscillatory alterations time locked but not phase locked to the stimulus. Words, false font stimuli, and two types of nonverbal patterns were presented visually while subjects performed a nonlinguistic visual feature detection task. The comparison of evoked and induced brain activity around 200 ms after stimulus onset revealed differential sensitivity to the stimuli. The M180 component of the evoked magnetic field was larger at the processing of words and false font stimuli compared with nonverbal stimuli. The induced magnetic brain activity in the 60-Hz band at a compatible latency range was correlated with the familiarity of the visual Gestalt. Sensitivity to language-specific information processing can be concluded if a parameter differentiates the word condition from the nonlexical conditions. Such a difference was observed at sensors located over the frontal-temporal scalp regions for induced but not evoked magnetic brain activity. Thus, evoked and induced magnetic brain activity revealed a differential sensitivity to elements of cognitive processing during the given task.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
150 Psychologie

Schlagwörter

MEG, Visual evoked magnetic field, Language, Lexical processing, Gammaband activity, Oscillatory

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ISO 690EULITZ, Carsten, Hind EULITZ, Burkhard MAESS, Rudolf COHEN, Christo PANTEV, Thomas ELBERT, 2000. Magnetic brain activity evoked and induced by visually presented words and nonverbal stimuli. In: Psychophysiology. 2000, 37, pp. 447-455. Available under: doi: 10.1111/1469-8986.3740447
BibTex
@article{Eulitz2000Magne-10304,
  year={2000},
  doi={10.1111/1469-8986.3740447},
  title={Magnetic brain activity evoked and induced by visually presented words and nonverbal stimuli},
  volume={37},
  journal={Psychophysiology},
  pages={447--455},
  author={Eulitz, Carsten and Eulitz, Hind and Maess, Burkhard and Cohen, Rudolf and Pantev, Christo and Elbert, Thomas}
}
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