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Transcranial Impedance Changes during Sleep: a Rheoencephalography Study
Objective: To demonstrate the utility of rheoencephalography (REG) for measuring cerebral blood flow and fluid dynamics during different stages of sleep. Methods: Anteroposterior cranial electrical impedance was measured with concurrent polysomnography in a group of healthy subjects during sleep.
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μ-Foil Polymer Electrode Array for Intracortical Neural Recordings
We have developed a multichannel electrode array, termed μ-foil, that comprises ultrathin and flexible electrodes protruding from a thin foil at fixed distances. This study is an early evaluation of technical aspects and performance of this electrode array in acute in vitro/in vivo experiments. The in vivo acute measurements showed…