How does it work?


NIS sensors are calibrated and linear in range. They are durable and long-lasting. The sensors transduce a wavelength, which is transmitted through a fiber optic wire to a fiber optic box. In MEG and fMRI applications, the fiber optic box is outside of the imaging room. In NIS custom software, wavelength is calibrated to force. Users can record from 16 sensors simultaneously using the NIS system. The interrogator digitizes the force data and our software collects the force data. NIS sensors are constructed from rigid, nonmetallic materials to allow for use inside the MRI and MEG environment, or use with EEG, EMG, TMS, and tDCS studies. They are housed in a 3D printed apparatus to insulate them from heat. The range of the sensors is from as small as a 1 N sensor to a 700 N sensor. The 1 N sensor is specialized for rodent applications and the 700 N sensor can be used in applications such as whole hand grasp or for use during lower limb force measurements. The 50 N and 150 N sensors are specialized for hand-grip and precision finger-force measurements in humans.


Software collects force sensor data. Users use the oscilloscope to check their signals, acquire a maximum force, and run a study paradigm. The study paradigm is controlled by easy to use text files that control the timing of events. The software can record up to 16 sensors at once. Using a separate monitor display, visual feedback can be provided to participants.


Software and A/D card provide ability to accept digital trigger from outside vendors. This provides precise time-locked data acquisition. The software and A/D card provide digital outputs for recording events, and this can facilitate studies that need time-locked events for EEG, MEG, and TMS applications. External trigger accepts all MRI vendors.


Scientific fields that currently use our devices include developmental neuroscience, mental health, sensory-motor physiology, movement disorders, and cognitive neuroscience. The sensors and software provide integration with MRI, MEG, EEG, TMS, and fNIRS systems. Users can time-lock with EMG systems and with brain stimulation devices such as tDCS.

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