Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
NOISE-INDUCED TRANSITIONS IN HUMAN POSTURAL SWAY
Autore:
EURICH CW; MILTON JG;
Indirizzi:
UNIV CHICAGO,DEPT NEUROL,5841 S MARYLAND AVE,MC 2030 CHICAGO IL 60637 UNIV CHICAGO,DEPT NEUROL CHICAGO IL 60637 UNIV CHICAGO,COMM NEUROBIOL CHICAGO IL 60637
Titolo Testata:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
fascicolo: 6, volume: 54, anno: 1996,
pagine: 6681 - 6684
SICI:
1063-651X(1996)54:6<6681:NTIHPS>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
HOPF-BIFURCATION; RANDOM-WALKS; OPEN-LOOP; SYSTEMS; BEHAVIOR; NEURONS; DELAY; OSCILLATION; RESONANCE; ONSET;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
C.W. Eurich e J.G. Milton, "NOISE-INDUCED TRANSITIONS IN HUMAN POSTURAL SWAY", Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 54(6), 1996, pp. 6681-6684

Abstract

Correlation functions with multiple scaling regions occur in the description of the fluctuations in the center of pressure during quiet standing. Postural sway is modeled as an inverted pendulum with a delayedfeedback constructed such that for deviations beyond a spatial threshold a constant restoring force is engaged. In the absence of noise, two stable limit cycles coexist. The correlation function depends on theadded noise intensity: at intermediate noise levels three scaling regions appear whereas only two occur for high noise levels. Our observations suggest that correlation functions with multiple scaling regions reflect noise-induced transitions in bistable dynamical systems.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/07/20 alle ore 22:19:01