[Bioinformation processing on the developing brain].
Applying a multidimensional autoregressive model to some bio-phenomena (i. e. EEG, EMG, heart rate variability and postural ways, etc.), the dynamic mono- and multivariate higher-order activities, each of which consisted of some first- and second-order component activities, can be described in frequency and time-pattern as the power spectral density or frequency responses and impulse responses. Some of these activities were manifested in the brain and cardio-respiratory systems during ontogenic development. Along with these changes of activities, there was a change in the information-carrying capacity of the brain during ontogeny. This implies that the entropy of EEG activity diminishes during maturation of the brain. Modern mathematical techniques, developed in the area of information theory, are invaluable. It seems reasonable to assume that along these lines we shall achieve further progress in research on normal and impaired brain mechanisms and behavior in the human infant and child.
Ogawa
T
T
Department of Pediatrics, Medical College of Oita.
D000293:Adolescent; D001921:Brain / Q000254:growth & development / Q000502:physiology*; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography; D006339:Heart Rate; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D015233:Models, Statistical; D010363:Pattern Recognition, Automated; D012044:Regression Analysis