Tennis balls impregnated with 5 grams of iron powder are
detected by electrodes buried beneath the lines of the court.
Previously, users had to fully concentrate on one of three commands — turn left, turn right, or do nothing — creating specific brain wave patterns
detected by an electrode - studded cap.
Not exact matches
However, the amount of free calcium ions
detected by the calcium ion selective
electrode (black line) increases considerably slower straight from the beginning of the experiment; that is, a distinct part of free calcium ions disappears due to binding.
This motion would be
detected by measuring image charges, which are induced
by the moving electrons, flowing through another
electrode using a commercially available current amplifier and lock - in detector.
I am sitting in a darkened, closet - size lab at Tufts University, my scalp covered
by a blue cloth cap studded with
electrodes that
detect electric signals from my brain.
They have demonstrated that
electrodes implanted in a monkey's motor cortex can
detect signals accompanying a specific arm movement; these same signals — after being processed
by an algorithm — can initiate similar movements
by a robot arm.
By applying an
electrode to the muscle cell, Teich and his colleagues were able to
detect the release of single «packets» of neurotransmitter from the tip of the nerve cell.
Earlier this year, another team reported using a brain machine interface to allow a quadriplegic to move his finger and arms, but that system directly activated arm muscles with brain signals
detected by implanted
electrodes, bypassing the damaged spinal cord.