The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Magnitude and Sign Correlations in Heartbeat Fluctuations
Open accessAbstract
We propose an approach for analyzing signals with long-range correlations by decomposing the signal increment series into magnitude and sign series and analyzing their scaling properties. We show that signals with identical long-range correlations can exhibit different time organization for the magnitude and sign. We find that the magnitude series relates to the nonlinear properties of the original time series, while the sign series relates to the linear properties. We apply our approach to the heartbeat interval series and find that the magnitude series is long-range correlated, while the sign series is anticorrelated and that both magnitude and sign series may have clinical applications.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Mosaic organization of DNA nucleotides
Peng, C.-K., Buldyrev, S. V., Havlin, S., Simons, M., Stanley, H. E., & Goldberger, A. L. (1994) · Physical Review E · doi:10.1103/physreve.49.1685 · Cited by 4,985
Self-citationQuantification of scaling exponents and crossover phenomena in nonstationary heartbeat time series
Peng, C.-K., Havlin, S., Stanley, H. E., & Goldberger, A. L. (1995) · Chaos: An Interdisciplinary Journal of Nonlinear Science · doi:10.1063/1.166141 · Cited by 3,855
Self-citationMultifractality in human heartbeat dynamics
Ivanov, P. C., Amaral, L. A. N., Goldberger, A. L., Havlin, S., Rosenblum, M. G., Struzik, Z. R., & Stanley, H. E. (1999) · Nature · doi:10.1038/20924 · Cited by 1,456
Self-citation1/f Fluctuation of Heartbeat Period
Kobayashi, M., & Musha, T. (1982) · IEEE Transactions on Biomedical Engineering · doi:10.1109/tbme.1982.324972 · Cited by 690
Fractals in the Physical Sciences
Hideki Takayasu, C. (1990) · Cited by 606
Quantitative analysis of heart rate variability
Kurths, J., Voss, A., Saparin, P., Witt, A., Kleiner, H. J., & Wessel, N. (1995) · Chaos: An Interdisciplinary Journal of Nonlinear Science · doi:10.1063/1.166090 · Cited by 474
Fractal mechanisms and heart rate dynamics
Peng, C.-K., Havlin, S., Hausdorff, J. M., Mietus, J. E., Stanley, H. E., & Goldberger, A. L. (1995) · Journal of Electrocardiology · doi:10.1016/s0022-0736(95)80017-4 · Cited by 358
Nonlinear control of heart rate variability in human infants.
Sugihara, G., Allan, W., Sobel, D., & Allan, K. D. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.6.2608 · Cited by 160
Desmond, M. J. (1996) · Postgraduate Medical Journal · doi:10.1136/pgmj.72.847.319 · Cited by 80
Cited by
Galaska, R., Makowiec, D., Dudkowska, A., Koprowski, A., Chlebus, K., Wdowczyk‐Szulc, J., & Rynkiewicz, A. (2008) · Annals of Noninvasive Electrocardiology · doi:10.1111/j.1542-474x.2008.00215.x · Cited by 49
Metadata
- Authors
- Ashkenazy, Y., Ivanov, P. C., Havlin, S., Peng, C.-K., Goldberger, A. L., & Stanley, H. E.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2001-02-26
- Volume
- 86
- Issue
- 9
- Pages
- 1900-1903
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1969072025
- Cited by
- 398
- References
- 9
- FWCI
- 51.90
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Magnitude and Sign Correlations in Heartbeat Fluctuations. https://app.cochat.ai/papers/10.1103/physrevlett.86.1900
- The paper
- Ashkenazy, Y., Ivanov, P. C., Havlin, S., Peng, C.-K., Goldberger, A. L., & Stanley, H. E. (2001). Magnitude and Sign Correlations in Heartbeat Fluctuations. Physical Review Letters. https://doi.org/10.1103/physrevlett.86.1900
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
