Analysis of sensory evoked potentials using normalised cross-correlation functions
| Autor: | M. D. Berger |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Time Factors
Cross-correlation Biomedical Engineering Neurophysiology Sensory system Macaca mulatta Computer Science Applications Noise Amplitude Somatosensory evoked potential Evoked Potentials Somatosensory Animals Latency (engineering) Evoked potential Neuroscience Mathematics Biomedical engineering |
| Zdroj: | Medical & Biological Engineering & Computing. 21:149-157 |
| ISSN: | 1741-0444 0140-0118 |
| DOI: | 10.1007/bf02441530 |
| Popis: | Somatosensory evoked potentials (e.p.s) produced by stimulation of the dorsal columns were recorded from the cervicol medullary junction of adult rhesus monkeys, and were analysed using normalised cross-correlation functions (n.c.c.f.s.), simple peak detection and r.m.s. amplitude measurement. The n.c.c.f. provided measures of latency shift and waveshape change, while the more traditional peak-detection method provided measures of peak latency and peak amplitude. The results of these procedures were plotted as functions of time relative to a single, brief experimental manipulation (impact acceleration of the whole body). Analysis by means of the n.c.c.f. was found to be a versatile and effective technique the advantages of which include measurement of latency shifts with little contamination by moderate changes in waveshape, quantification of subtle waveshape changes and usefulness under a wide variety of noise conditions |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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