TY - GEN
T1 - Information transfer analysis of spontaneous low-frequency fluctuations in cerebral hemodynamics and cardiovascular dynamics
AU - Katura, Takusige
AU - Tanaka, Naoki
AU - Obata, Akiko
AU - Sato, Hiroki
AU - Maki, Atsushi
PY - 2005/8/25
Y1 - 2005/8/25
N2 - In this study, from the information-theoretic viewpoint, we analyzed the interrelation between the spontaneous low-frequency fluctuations around 0.1Hz in the hemoglobin concentration in the cerebral cortex, mean arterial blood pressure and the heart rate. For this analysis, as measures of information transfer, we used transfer entropy (TE) proposed for two-factor systems by Schreiber and intrinsic transfer entropy (ITE) introduced for further analysis of three-factor systems by extending the original TE. In our analysis, information transfer analysis based on both TE and ITE suggests the systemic cardiovascular fluctuations alone cannot account for the cerebrovascular fluctuations, that is, the regulation of the regional cerebral energetic metabolism is important as a candidate of its generation mechanism Such an information transfer analysis seems useful to reveal the interrelation between the elements regulated each other in a complex manner.
AB - In this study, from the information-theoretic viewpoint, we analyzed the interrelation between the spontaneous low-frequency fluctuations around 0.1Hz in the hemoglobin concentration in the cerebral cortex, mean arterial blood pressure and the heart rate. For this analysis, as measures of information transfer, we used transfer entropy (TE) proposed for two-factor systems by Schreiber and intrinsic transfer entropy (ITE) introduced for further analysis of three-factor systems by extending the original TE. In our analysis, information transfer analysis based on both TE and ITE suggests the systemic cardiovascular fluctuations alone cannot account for the cerebrovascular fluctuations, that is, the regulation of the regional cerebral energetic metabolism is important as a candidate of its generation mechanism Such an information transfer analysis seems useful to reveal the interrelation between the elements regulated each other in a complex manner.
KW - Fluctuation
KW - NIRS
KW - Transfer entropy
UR - http://www.scopus.com/inward/record.url?scp=33749464337&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33749464337&partnerID=8YFLogxK
U2 - 10.1063/1.2036820
DO - 10.1063/1.2036820
M3 - Conference contribution
AN - SCOPUS:33749464337
SN - 0735402671
SN - 9780735402676
T3 - AIP Conference Proceedings
SP - 583
EP - 586
BT - NOISE AND FLUCTUATIONS
T2 - NOISE AND FLUCTUATIONS: 18th International Conference on Noise and Fluctuations - ICNF 2005
Y2 - 19 September 2005 through 23 September 2005
ER -