{
  "annotation_id": "1041ea60-1d58-458c-bb48-657a60fa9f0c",
  "date_created": "2026-03-02T18:01:31.084000Z",
  "date_modified": "2026-03-02T18:01:31.084000Z",
  "file_hash": "9fca2eb30ba88b05160962874a484d360269ea447e5a5c67dd5de44e5a98639f",
  "private": false,
  "record": {
    "abstract": "We present the first systematic evidence for the origins of 1/f-type temporal\nscaling in human heart rate. The heart rate is regulated by the activity of two\nbranches of the autonomic nervous system: the parasympathetic (PNS) and the\nsympathetic (SNS) nervous systems. We examine alterations in the scaling\nproperty when the balance between PNS and SNS activity is modified, and find\nthat the relative PNS suppression by congestive heart failure results in a\nsubstantial increase in the Hurst exponent H towards random walk scaling\n$1/f^{2}$ and a similar breakdown is observed with relative SNS suppression by\nprimary autonomic failure. These results suggest that 1/f scaling in heart rate\nrequires the intricate balance between the antagonistic activity of PNS and\nSNS.",
    "arxiv_id": "q-bio/0410001",
    "authors": [
      "Zbigniew R. Struzik",
      "Junichiro Hayano",
      "Seiichiro Sakata",
      "Shin Kwak",
      "Yoshiharu Yamamoto"
    ],
    "categories": [
      "q-bio.OT"
    ],
    "doi": "10.1103/PhysRevE.70.050901",
    "title": "1/f Scaling in Heart Rate Requires Antagonistic Autonomic Control",
    "url": "https://arxiv.org/abs/q-bio/0410001"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fd37fae2-6593-4e10-8694-455ac8baf0d4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}