Analysis of Hemodynamics in Cerebral Cortex during PASAT using NIRS

Abstract

This paper discusses hemodynamics in cerebral cortex when subjects taking in glucose perform Paced Auditory Serial Addition Test (PASAT). PASAT can give large load to working memory. Hemodynamics of the subject is evaluated using oxidized hemoglobin concentration, HbO, measured by Near-infrared Spectroscopy (NIRS).We apply multivariable estimated models of auto-regressive form with upper triangular estimates. They are given by hierarchical decomposition analysis, which show properties of each stage.