dorsal/arxiv
View SchemaScale Invariance and Nonlinear Patterns of Human Activity
| Authors | Kun Hu, Plamen Ch. Ivanov, Zhi Chen, Michael F. Hilton, H. Eugene Stanley, Steven A. Shea |
|---|---|
| Categories | |
| ArXiv ID | physics/0308011 |
| URL | https://arxiv.org/abs/physics/0308011 |
| DOI | 10.1016/j.physa.2004.01.042 |
| Journal | Physica A, 337, 307-318 (2004) |
Abstract
We investigate if known extrinsic and intrinsic factors fully account for the complex features observed in recordings of human activity as measured from forearm motion in subjects undergoing their regular daily routine. We demonstrate that the apparently random forearm motion possesses previously unrecognized dynamic patterns characterized by fractal and nonlinear dynamics. These patterns are unaffected by changes in the average activity level, and persist when the same subjects undergo time-isolation laboratory experiments designed to account for the circadian phase and to control the known extrinsic factors. We attribute these patterns to a novel intrinsic multi-scale dynamic regulation of human activity.
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"abstract": "We investigate if known extrinsic and intrinsic factors fully account for the\ncomplex features observed in recordings of human activity as measured from\nforearm motion in subjects undergoing their regular daily routine. We\ndemonstrate that the apparently random forearm motion possesses previously\nunrecognized dynamic patterns characterized by fractal and nonlinear dynamics.\nThese patterns are unaffected by changes in the average activity level, and\npersist when the same subjects undergo time-isolation laboratory experiments\ndesigned to account for the circadian phase and to control the known extrinsic\nfactors. We attribute these patterns to a novel intrinsic multi-scale dynamic\nregulation of human activity.",
"arxiv_id": "physics/0308011",
"authors": [
"Kun Hu",
"Plamen Ch. Ivanov",
"Zhi Chen",
"Michael F. Hilton",
"H. Eugene Stanley",
"Steven A. Shea"
],
"categories": [
"physics.bio-ph",
"physics.data-an",
"q-bio.QM"
],
"doi": "10.1016/j.physa.2004.01.042",
"journal_ref": "Physica A, 337, 307-318 (2004)",
"title": "Scale Invariance and Nonlinear Patterns of Human Activity",
"url": "https://arxiv.org/abs/physics/0308011"
},
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