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Near-infrared spectroscopy (NIRS) is commonly used for studying human brain function. However, several studies have shown that superficial hemodynamic changes such as skin blood flow can affect the prefrontal NIRS hemoglobin (Hb) signals. To examine the criterion-related validity of prefrontal NIRS-Hb signals, we focused on the functional signals during a working memory (WM) task and investigated...
Introduction: Abnormalities in the dynamic aspects of brain activity could underlie the pathophysiology of psychiatric disorders. Temporal characteristics of cerebral blood volume change, which are candidate indices of such dynamic aspects, were examined using a multichannel near-infrared spectroscopy (NIRS) machine. Methods: Thirty right-handed healthy volunteers participated in the study (mean age:...
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