Cerebral lateralization in schizophrenia and dyslexia : neuromagnetic responses to auditory stimuli

Heim, Sabine; Kissler, Johanna; Elbert, Thomas; Rockstroh, Brigitte

Cerebral lateralization in schizophrenia and dyslexia : neuromagnetic responses to auditory stimuli

Dateien

Heim_et_al_SZ-DYS04.pdf(405.45 KB)

Datum

2004

Publikationstyp

Zeitschriftenartikel

Erschienen in

Neuropsychologia ; 42 (2004). - S. 692-697

Zusammenfassung

Many studies have shown altered hemispheric asymmetry particularly in perisylvian regions in schizophrenia patients as well as in individuals with dyslexia. Here we explore the similarity of these findings comparing the localization of the magnetic auditory N100m to the German syllable [ba:] in schizophrenia patients, dyslexic adults, and healthy control subjects. Control subjects showed the typical finding of more anterior sources in the right than in the left perisylvian region. In contrast, both schizophrenia patients and dyslexic subjects displayed a symmetrical N100m source configuration. While in people with dyslexia the alteration appears to originate in the right hemisphere, left-hemispheric deviations might contribute to reduced asymmetry in schizophrenia patients. Our results indicate that an absence of lateralized auditory responses in the temporal lobes may reflect a common deviance present in dyslexia and schizophrenia. The nonspecific finding of reduced cerebral laterality may be accounted for by population-specific differences in the functional organization of perisylvian sites.

Fachgebiet (DDC)

150 Psychologie

Schlagwörter

Auditory processing,Magnetoencephalography,N100m,Temporal cortex,Perisylvian region

Zitieren

ISO 690

HEIM, Sabine, Johanna KISSLER, Thomas ELBERT, Brigitte ROCKSTROH, 2004. Cerebral lateralization in schizophrenia and dyslexia : neuromagnetic responses to auditory stimuli. In: Neuropsychologia. 42, pp. 692-697. Available under: doi: 10.1016/j.neuropsychologia.2003.09.007

BibTex

@article{Heim2004Cereb-10840,
  year={2004},
  doi={10.1016/j.neuropsychologia.2003.09.007},
  title={Cerebral lateralization in schizophrenia and dyslexia : neuromagnetic responses to auditory stimuli},
  volume={42},
  journal={Neuropsychologia},
  pages={692--697},
  author={Heim, Sabine and Kissler, Johanna and Elbert, Thomas and Rockstroh, Brigitte}
}

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