THE EFFECT OF STIMULATION RATE ON THE SIGNAL-TO-NOISE RATIO OF EVOKED-RESPONSES

Authors
AHLFORS SP ILMONIEMI RJ PORTIN K
Citation
Sp. Ahlfors et al., THE EFFECT OF STIMULATION RATE ON THE SIGNAL-TO-NOISE RATIO OF EVOKED-RESPONSES, Electroencephalography and clinical neurophysiology, 88(4), 1993, pp. 339-342
Citations number
13
Categorie Soggetti
Neurosciences
Journal title
Electroencephalography and clinical neurophysiology → ACNP
ISSN journal
00134694
Volume
88
Issue
4
Year of publication
1993
Pages
339 - 342
Database
ISI
SICI code
0013-4694(1993)88:4<339:TEOSRO>2.0.ZU;2-W
Abstract
The signal-to-noise ratio (SNR) in averaged evoked responses is propor tional to the signal amplitude and to the square root of the stimulati on frequency. If the SNR-stimulation-rate dependence is known for some specified component or feature of the response it is possible to sele ct a rate that maximizes the SNR of that component within a given meas urement time. The same stimulation rate also minimizes the acquisition time for a given SNR.