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Dissociating the semantic relation and language effects in the bilingual brain: an event-related potential study
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Rhyme processing in the brain: An ERP mapping study
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In: INT J PSYCHOPHYSIOL , 63 (3) 240 - 250. (2007) (2007)
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Rhyme processing in the brain: an ERP mapping study.
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In: International Journal of Psychophysiology, vol. 63, no. 3, pp. 240-250 (2007)
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Electrical neuroimaging reveals early generator modulation to emotional words
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In: Neuroimage, vol. 21, no. 4, pp. 1242-51 (2004)
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Processing of semantic categorical and associative relations: an ERP mapping study.
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In: International Journal of Psychophysiology, vol. 49, no. 1, pp. 41-55 (2003)
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Processing of semantic categorical and associative relations: an ERP mapping study
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Dynamics of brain activation during an explicit word and image recognition task: an electrophysiological study.
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In: Brain Topography, vol. 14, no. 3, pp. 197-213 (2002)
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The time course of semantic category processing in the cerebral hemispheres: an electrophysiological study.
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In: Brain Research. Cognitive brain research, vol. 10, no. 3, pp. 251-264 (2001)
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Semantic category and rhyming processing in the left and right cerebral hemisphere
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In: Laterality, vol. 5, no. 1, pp. 35-53 (2000)
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Semantic category and rhyming processing in the left and right cerebral hemisphere
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Semantically-triggered reading epilepsy: an experimental case study
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In: Cortex , 35 (1 ) pp.101 - 111 . (1999) (1999)
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Semantically-triggered reading epilepsy: an experimental case study
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In: Cortex , 35 (1) pp.101 - 111. (1999) (1999)
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Spatio-temporal analysis of electric brain activity during semantic and phonological word processing.
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In: International Journal of Psychophysiology , 32 (3) 215 - 231. (1999) (1999)
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Spatio-temporal analysis of electric brain activity during semantic and phonological word processing.
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In: International Journal of Psychophysiology, vol. 32, no. 3, pp. 215-231 (1999)
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Abstract:
There is an ongoing debate in cognitive neuroscience about the time course and the functional independence of the different processes involved in encoding written language material. New data indicate very fast and highly parallel language analysis networks in the brain. Here we demonstrate a methodological approach to study the temporal dynamics of this network by searching for time periods where different task demands emphasize different aspects of the network. Multi-channel event related potentials (ERPs) were recorded during a semantic and a phonological reading task from 14 healthy subjects. Signals were analyzed exclusively on the basis of the spatial configuration of the electric potential distributions (ERP maps), since differences in these spatial patterns directly reflect changes in the configuration of the active sources in the brain. This analysis did not reveal any differences of the evoked brain electric fields between the two tasks up to 280 ms post-stimulus. The ERP maps then differed for a brief period between 280 and 380 ms, before they were similar again. The analysis of the maps using a global linear localization procedure revealed a network of areas, active in both tasks, that mainly involved the left postero-temporal and left antero-temporal regions. The left posterior activation was found already around 100 ms post-stimulus, indicating that language-specific functions appear early in time. We therefore conclude that phonological and semantic processing are essentially performed in both tasks and that only late decision-related processes influence the relative strength of activity of the different modules in the complex language network.
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Keyword:
Adult; Analysis of Variance; Brain Mapping; Cerebral Cortex; Concept Formation; Evoked Potentials; Female; Frontal Lobe; Humans; Male; Occipital Lobe; Phonetics; Reaction Time; Reading; Semantics; Temporal Lobe; Time Factors; Verbal Behavior
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URL: https://doi.org/10.1016/S0167-8760(99)00017-3 https://serval.unil.ch/notice/serval:BIB_7D43429B2B12
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Semantically-triggered reading epilepsy: An experimental case study
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