• Accessories / Sensors For MR

    GSR MR Module and 3D Acceleration Sensor MR

    The demand for the capability to measure peripheral physiological signals (e.g. skin conductance or movements) in addition to EEG in the MR scanner has been clearly increasing over the past years. And as you know, our customers’ wishes are our demands.

  • GSR MR Module

    Skin conductance (SC) has for decades been one of the most employed measures in psychophysiologic research. As a sensitive parameter for emotional and cognitive states, stress and pain, SC has also been widely used in psychiatric research. Therefore Brain Products developed a completely RF proof GSR/EDA sensor for use inside the scanner bore.

    The GSR MR module is an extremely compact but heavily shielded DC instrumentation amplifier capable of measuring conductance directly using 0.5V constant voltage. Because of its high CMRR properties, the gradient artifact emerges remarkably suppressed. The sensor interfaces with the bipolar BrainAmp ExG MR via the ExG AUX box and the GSR can be recorded synchronously with other physiological signals.

    Adding the GSR MR module to your already existing BrainAmp ExG MR system will enable you to easily record GSR of laboratory-standard quality even during functional MRI.

  • 3D Acceleration Sensor MR

    The 3D Acceleration Sensor captures movements in three dimensions. The module is made up of the sensor and a pre-amplifier. Two sensors with cables of different lengths are supplied as standard. This is intended to ensure that the cables are routed in the best possible fashion. It allows the sensor to be combined with other recording modules and the ExG AUX input box to best meet the needs of the experimental design and comply with the particular conditions in the scanner

    The primary application of the acceleration sensor is to detect and record movement or acceleration of the extremities. It is, however, also possible to detect blood pulse and breathing, technical artefacts such as vibrations of the scanner as well as identifying positions. The sensor is designated „MR-conditional“. This designation indicates that the operating Instructions must be observed when using it in a scanner.

DİSTRİBÜTÖRLÜKLERİMİZ

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