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| Content Provider | Springer Nature Link |
|---|---|
| Author | Schulz, Stefan M. Ayala, Erica Dahme, Bernhard Ritz, Thomas |
| Copyright Year | 2009 |
| Abstract | Respiratory sinus arrhythmia (RSA) is a common estimator of vagal outflow to the heart, dependent on parasympathetic activity. During variable breathing, both respiration rate and tidal volume contribute substantially to within-individual RSA variance. A respiratory control method allows for within-individual correction of the time-domain index of RSA. rsaToolbox is a set of MATLAB programs for scoring respiration-corrected RSA using measurements of cardiac interbeat intervals, respiratory-cycle times, and tidal volumes, recorded at different paced-breathing frequencies. The within-individual regression of RSA divided by tidal volume upon total respiratory cycle time is then used to estimate the baseline vagal tone for each breath of a given total respiratory-cycle time. During a subsequent analysis, the difference between the observed RSA (divided by the tidal volume at each breath) and the RSA divided by the tidal volume that was predicted by the baseline equation serves as an estimate of changes in vagal tone. rsaToolbox includes a graphical user interface for intuitive handling. Modular implementation of the algorithm also allows for flexible integration within other analytic strategies or for batch processing. |
| Starting Page | 1121 |
| Ending Page | 1126 |
| Page Count | 6 |
| File Format | |
| ISSN | 1554351X |
| Journal | Behavior Research Methods |
| Volume Number | 41 |
| Issue Number | 4 |
| e-ISSN | 15543528 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-01-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Cognitive Psychology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Experimental and Cognitive Psychology Arts and Humanities Developmental and Educational Psychology |
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