Hemispheric differences on auditory evoked response suppression in schizophrenia
| Autor: | Laura D. Blumenfeld, Brett A. Clementz |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Adult
Male Sound localization Psychosis medicine.medical_specialty media_common.quotation_subject Stimulus (physiology) Monaural Audiology Functional Laterality Perception Reaction Time medicine Humans media_common medicine.diagnostic_test General Neuroscience Magnetoencephalography Neural Inhibition medicine.disease Acoustic Stimulation Case-Control Studies Laterality Evoked Potentials Auditory Schizophrenia Female Psychology Binaural recording |
| Zdroj: | NeuroReport. 10:2587-2591 |
| ISSN: | 0959-4965 |
| DOI: | 10.1097/00001756-199908200-00027 |
| Popis: | Using binaural stimuli, schizophrenia subjects have worse auditory evoked response (AER) suppression than normals in a paired-click paradigm. In this study we investigated hemispheric differences in AER suppression between groups using monaural and binaural stimulus presentation. Auditory evoked responses from 12 schizophrenia and 12 normal subjects were recorded with a 148-channel whole-head biomagnetometer. One hundred and twenty pairs of clicks were presented in three counterbalanced blocks (left, right, binaural). With monaural stimuli, patients had worse M100 suppression than normals in ipsilateral (effect size -2.13) but not in contralateral hemisphere (effect size -0.43). The groups did not differ on gamma band response suppression. Overall, the best group separations were obtained with binaural stimulus presentation on M100 suppression (effect size -4.14). |
| Databáze: | OpenAIRE |
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