Additional physiological measures during MRI
BLOOD
The physiological data collected during MRI scans include respiration, exhaled carbon dioxide (CO2), electrodermal activity, blood pressure, and heart rate. All the physiological data were collected at 10 kHz sampling rate using Biopac MP150 Data Acquisition System with MR-compatible sensors and recorded with AcqKnowledge software 5.0. Respiration was measured using the breathing belt, TSD201 transducer and transferred to the Biopac RSP100C module to be 0.05–1 Hz bandpass-filtered, amplified with 10 times of gain. Exhaled carbon dioxide (CO2) levels were measured using Philips NM3 Monitor (Model 7900) with nasal cannula and fed to Biopac MP150. The heart rate data were collected with a Nonin Medical 8600FO Pulse Oximeter and sent to Biopac MP150. The electrodermal activity was recorded using the Biopac GSR100C module. Blood pressure was measured using CareTaker device and software and recorded with Biopac MP150.Tables Descriptive statistics of physiological measures during the resting scan.Test-retest correlation of physiological measures during the resting scan.