期刊
CLINICAL NEUROPHYSIOLOGY
卷 125, 期 4, 页码 805-813出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.clinph.2013.06.190
关键词
Adaptation; Auditory Brainstem Response (ABR); Evoked potentials; Interstimulus interval (ISI); Randomized stimulation and averaging (RSA)
资金
- Design, implementation and evaluation of an advanced system for recording Auditory brainstem response (ABR) based in encoded signaling [TEC2009-14245]
- RD National Plan
- Ministry of Economy and Competivity (Government of Spain)
- European Regional Development Fund Programme
- Programa de Formacion de Profesorado Universitario (FPU) [AP2009-3150]
- Ministry of Education, Culture, and Sports (Government of Spain)
Objective: This paper analyzes the fast and slow mechanisms of adaptation through a study of latencies and amplitudes on ABR recorded at high stimulation rates using the randomized stimulation and averaging (RSA) technique. Methods: The RSA technique allows a separate processing of auditory responses, and is used, in this study, to categorize responses according to the interstimulus interval (ISI) of their preceding stimulus. The fast and slow mechanisms of adaptation are analyzed by the separated responses methodology, whose underlying principles and mathematical basis are described in detail. Results: The morphology of the ABR is influenced by both fast and slow mechanisms of adaptation. These results are consistent with previous animal studies based on spike rate. Conclusions: Both fast and slow mechanisms of adaptation are present in all subjects. In addition, the distribution of the jitter and the sequencing of the stimuli may be critical parameters when obtaining reliable ABRs. Significance: The separated responses methodology enables for the first time the analysis of the fast and slow mechanisms of adaptation in ABR obtained at stimulation rates greater than 100 Hz. The non-invasive nature of this methodology is appropriate for its use in humans. (C) 2013 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.
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