Archive

This animal study used non-contact induction sensors and a shielded helmet to measure cortical EMF patterns in a Yucatan miniswine before and after traumatic brain injury induced by controlled cortical impact. The authors report that targeted low-frequency EMF stimulation initiated 20 minutes post-injury was…

This pilot swine study evaluated whether non-contact proprietary induction sensors in a Mu-metal/copper mesh helmet can measure endogenous neuronal EMF signals before and after controlled cortical impact traumatic brain injury. The authors report that swine EMF recordings were distinguishable from room noise and…

This study evaluated whether a lightweight Mu-metal and copper mesh shielded helmet with EMF channels could reduce external electromagnetic interference enough to measure cortically generated EMF using non-contact induction sensors without a shielded room. In five volunteers performing motor, verbalization, and…

This study describes a non-contact, non-invasive method to measure electromagnetic activity attributed to the human brain using a lightweight helmet and a shielded EMF channel around a sensor. Volunteers performed metronome-synchronized tasks intended to elicit movement, thoughts of movement, and emotional thought.…

This study describes a helmet-based, non-contact method to continuously measure electromagnetic field activity associated with human brain neuronal activity during thought tasks. Volunteers performed motor movement, motor imagery, and emotional imagery while brain EMF was recorded. The authors report discernible…

This study reports a non-contact, non-invasive helmet system intended to measure intrinsic electromagnetic fields generated by the human brain during stereotyped motor tasks. Volunteers performed repetitive tapping, and the authors report discernible wave changes compared with rest and baseline measurements without a…

This study describes a lightweight, inexpensive construct using non-contact EMF sensors to measure dynamic electromagnetic fields attributed to the human brain. Measurements in non-clinical volunteers reportedly differed from background recordings and changed during task performance and auditory stimulation. The…

This engineering-focused study measured ultrasonic propagation velocity in hydrocarbon-based magnetic and magnetorheological fluids under an external magnetic field. The authors report that clustering structures formed in the fluids influence ultrasonic propagation velocity, with observed hysteresis and anisotropy.…