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Altered Hemispheric Asymmetry of Auditory Magnetic Fields to Tones and Syllables in Schizophrenia

Altered Hemispheric Asymmetry of Auditory Magnetic Fields to Tones and Syllables in Schizophrenia

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ROCKSTROH, Brigitte, Johanna KISSLER, Bettina MOHR, Carsten EULITZ, Ursula LOMMEN, Christian WIENBRUCH, Rudolf COHEN, Thomas ELBERT, 2000. Altered Hemispheric Asymmetry of Auditory Magnetic Fields to Tones and Syllables in Schizophrenia. In: Biological Psychiatry. 49, pp. 694-703. Available under: doi: 10.1016/S0006-3223(00)01023-4

@article{Rockstroh2000Alter-10900, title={Altered Hemispheric Asymmetry of Auditory Magnetic Fields to Tones and Syllables in Schizophrenia}, year={2000}, doi={10.1016/S0006-3223(00)01023-4}, volume={49}, journal={Biological Psychiatry}, pages={694--703}, author={Rockstroh, Brigitte and Kissler, Johanna and Mohr, Bettina and Eulitz, Carsten and Lommen, Ursula and Wienbruch, Christian and Cohen, Rudolf and Elbert, Thomas} }

Cohen, Rudolf Elbert, Thomas Lommen, Ursula First publ. in: Biological Psychiatry 49 (2001), pp. 694-703 Wienbruch, Christian 2000 Mohr, Bettina application/pdf 2011-03-25T09:23:41Z Background: A growing body of literature suggests that schizophrenic patients often do not show the normal brain hemispheric asymmetry. We have found this for simple tones presented to the right ear in a previous study. In this study we extended this investigation to left ear stimulation and verbal stimuli.<br />Methods: With a whole-head neuromagnetometer, contra- and ipsilateral auditory-evoked magnetic fields in response to tones (1000 Hz) and to the syllables ("ba") delivered to the left and right ears in separate runs were compared between schizophrenic patients (n = 17) and healthy control subjects (n = 15).<br />Results: In response to tones, all control subjects showed the expected asymmetry (contralateral predominance) of the auditory-evoked magnetic N100m (dipole moment). In the patient sample asymmetry was reversed following tones presented to the left ear in 47% and following tones to the right ear in 24%. In response to syllables, the asymmetry was similar between groups. In patients compared with control subjects the N100m was located more anterior without asymmetry between hemispheres.<br />Conclusions: Results suggest that deviation from the normal functional lateralization in schizophrenia appears in a proportion of patients at a basic stage of auditory processing, but may be compensated for at higher levels such as the processing of syllables. deposit-license Cohen, Rudolf Mohr, Bettina Lommen, Ursula Kissler, Johanna Elbert, Thomas Wienbruch, Christian Altered Hemispheric Asymmetry of Auditory Magnetic Fields to Tones and Syllables in Schizophrenia Eulitz, Carsten Eulitz, Carsten Kissler, Johanna Rockstroh, Brigitte Rockstroh, Brigitte 2011-03-25T09:23:41Z eng

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

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