Binaural interaction in the human brain can be non-invasively accessed with long-latency event-related potentials
| Autor: | Juha Lavikainen, Risto Näätänen, P. May, Hannu Tiitinen |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Sound localization
Adult Male medicine.medical_specialty Mismatch negativity Stimulus (physiology) Monaural Audiology behavioral disciplines and activities 050105 experimental psychology 03 medical and health sciences 0302 clinical medicine Event-related potential medicine Humans 0501 psychology and cognitive sciences Evoked Potentials General Neuroscience 05 social sciences Brain Electroencephalography Human brain Electrophysiology medicine.anatomical_structure Acoustic Stimulation Female Psychology Binaural recording psychological phenomena and processes 030217 neurology & neurosurgery |
| Zdroj: | Neuroscience letters. 222(1) |
| ISSN: | 0304-3940 |
| Popis: | Invasive microelectrode measurements have demonstrated binaural interaction effects of summation, occlusion, and suppression. Here we demonstrate these phenomena in humans using non-invasive long-latency cortical event-related potential (ERP) components N1 and mismatch negativity (MMN). Subjects were presented with monaural and binaural stimulus trains consisting of frequent standard stimuli and deviant stimuli deviating from the standard either in frequency, intensity, or duration. The binaural N1 was smaller than the monaural N1. MMN for the intensity change was larger with binaural than monaural stimulation, whereas for the frequency and duration change, the MMN amplitude remained unchanged. Thus, cortical binaural interactions reflected suppression in the N1, summation for the intensity MMN, and occlusion for the frequency and duration MMNs. |
| Databáze: | OpenAIRE |
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