Abstract:
:In electrophysiological recording, a microcomputer-based analog-to-digital (A/D) card is an indispensable instrument for signal acquisition and analysis. In our studies, evoked responses sampled by our A/D card showed variation among different cycles. If several cycles had been averaged, the resultant waveform would have a smaller peak amplitude and a longer duration. To explain this phenomenon, a simulated sampling model of compound action potential was proposed. Our experimental data agreed very well with the prediction of the simulated model. The long and varied delay time between the external trigger and the first sampling in each cycle by our A/D card might be the main cause of such variation. This problem could not be solved by any post-sampled programming. Hence, for those electrophysiological laboratories which sampled evoked responses, to buy a new A/D card might be the most straightforward solution to the problem.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Jaw FS,Lin CW,Wang CYdoi
10.1016/0165-0270(95)00059-3subject
Has Abstractpub_date
1995-11-01 00:00:00pages
175-8issue
1-2eissn
0165-0270issn
1872-678Xpii
0165-0270(95)00059-3journal_volume
62pub_type
杂志文章abstract::Intrinsic signal imaging (ISI) measures changes in light reflectance from the illuminated cortex (intrinsic signals or IS) attributed to various vascular and metabolic sources that, when using illumination in the 600 nm range, appear to co-localize with neuronal activity. Given the multiple sources contributing to the...
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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更新日期:2015-06-15 00:00:00
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journal_title:Journal of neuroscience methods
pub_type: 杂志文章,评审
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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更新日期:2015-02-15 00:00:00
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更新日期:2010-03-15 00:00:00
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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更新日期:2007-09-30 00:00:00
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
pub_type: 杂志文章
doi:10.1016/j.jneumeth.2013.01.010
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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更新日期:1995-02-01 00:00:00
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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journal_title:Journal of neuroscience methods
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