Left-hemispheric abnormal EEG activity in relation to impairment and recovery in aphasic patients

Hensel, Sandra; Rockstroh, Brigitte; Berg, Patrick; Elbert, Thomas; Schönle, Paul-Walter

Left-hemispheric abnormal EEG activity in relation to impairment and recovery in aphasic patients

Dateien

Elbert_2004_Left_hemispheric.pdfGröße: 310 KBDownloads: 1042

Datum

2004

Autor:innen

Hensel, Sandra

Rockstroh, Brigitte

Berg, Patrick

Elbert, Thomas

Schönle, Paul-Walter

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Psychologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Psychophysiology. 2004, 41(3), pp. 394-400. Available under: doi: 10.1111/j.1469-8986.2004.00164x

Zusammenfassung

Focal electromagnetic slow-wave activity is generated in the vicinity of brain lesions. The present study confirmed this for the EEG delta band (1-4 Hz): Activity in the waking state was pronounced over the hemisphere of the lesion in 11 stroke patients suffering from aphasia, but not in 10 healthy controls. Changes of abnormal slow waves patterns were tracked from 1-3 months to 2 years poststroke by recording the EEG five times at 4-month intervals. Across the first year poststroke, mean left-hemispheric delta amplitude and equivalent current dipole strength decreased in parallel with the spontaneous recovery of language function, whereas the regional distribution of delta activity sources was stabile across time. No changes were observed during the second year poststroke. Results suggest that abnormal slow waves in the vicinity of brain lesions may be related to impairment in brain function, and that their measurement may assist in depicting the course of functional recovery.

Fachgebiet (DDC)

150 Psychologie

Schlagwörter

Aphasia, Electroencephalography, Delta, Recovery, Brain lesion

Zitieren

ISO 690

HENSEL, Sandra, Brigitte ROCKSTROH, Patrick BERG, Thomas ELBERT, Paul-Walter SCHÖNLE, 2004. Left-hemispheric abnormal EEG activity in relation to impairment and recovery in aphasic patients. In: Psychophysiology. 2004, 41(3), pp. 394-400. Available under: doi: 10.1111/j.1469-8986.2004.00164x

BibTex

@article{Hensel2004Lefth-10619,
  year={2004},
  doi={10.1111/j.1469-8986.2004.00164x},
  title={Left-hemispheric abnormal EEG activity in relation to impairment and recovery in aphasic patients},
  number={3},
  volume={41},
  journal={Psychophysiology},
  pages={394--400},
  author={Hensel, Sandra and Rockstroh, Brigitte and Berg, Patrick and Elbert, Thomas and Schönle, Paul-Walter}
}

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Universitätsbibliographie

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