Binaural interaction component and white-noise enhancement in middle latency responses: differential effects of anaesthesia in guinea pigs
| Autor: | Cuneyt Goksoy, Rezzan Utkucal |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Sound localization
medicine.medical_specialty Auditory Pathways General Neuroscience Guinea Pigs Auditory Threshold White noise Monaural Audiology Functional Laterality Guinea pig Electrophysiology Middle latency responses Acoustic Stimulation Anesthesia Auditory Perception Evoked Potentials Auditory Reaction Time medicine Animals Sound Localization Evoked potential Psychology Binaural recording |
| Zdroj: | Experimental Brain Research. 130:410-414 |
| ISSN: | 1432-1106 0014-4819 |
| DOI: | 10.1007/s002219900278 |
| Popis: | It is known that the response to binaural clicks is smaller in amplitude than the sum of two monaural responses. The difference is called the binaural interaction component (BIC). Also, an amplitude enlargement occurs in guinea pig middle latency responses (MLRs) to monaural clicks when white noise is applied to the other ear. This study was conducted to find out whether these two signs of binaural interaction result from the same mechanism. White noise enhancement (WNE) and BIC were computed from the evoked potential data simultaneously recorded in different phases of anaesthesia. WNE gradually decreased and disappeared with anaesthesia, but the relative amplitude of the BIC remained unchanged. This differential effect showed that different neural mechanisms must be responsible for BIC and WNE in guinea pig MLR. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink