fMRI functional connectivity analysis of anxiety disease patients based on spatiotemporal Lyapunov exponent method / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
;
(6): 294-297, 2011.
Artículo
en Chino
| WPRIM
| ID: wpr-325997
ABSTRACT
Attempting to use nonlinear spatiotemporal Lyapunov exponent to characterize fMRI brain functional connectivity of anxiety disease patients, we adopted the methods of nonlinear spatiotemporal Lyapunov exponent and linear correlation coefficients to analyses fMRI datum of 11 anxiety disease patients and 11 healthy volunteers, respectively. The results show that there are significant normalized variance exponent (NVE) differences in Inferior Frontal Gyrus (rIFG) and Medial Frontal Gyrus (MFG) between the two groups (P<0.01). And correlation coefficients shows significant differences (P<0.05). The spatial-temporal Lyapunov exponent method had higher sensitivity than the correlation coefficient method in the characterization of functional connectivity; Anxiety disease patients have abnormal functional connectivity in rIFG and MFG during our experiment.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Trastornos de Ansiedad
/
Mapeo Encefálico
/
Imagen por Resonancia Magnética
/
Estudios de Casos y Controles
/
Dinámicas no Lineales
/
Métodos
Tipo de estudio:
Estudio observacional
Límite:
Adulto
/
Femenino
/
Humanos
/
Masculino
Idioma:
Chino
Revista:
Chinese Journal of Medical Instrumentation
Año:
2011
Tipo del documento:
Artículo
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