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1)Replace portions of nervous system with technology 2) interface machines with nervous system
Apply electrical current to muscles or CNS to cause movement; Different from applications for pain (don't cause movement)
functional electrical stimulation
low level electrical stimulation to assist movement (ex: pacemaker); can assist w/ standing or grasping; not useful w/ denervation
Bionic neurons; wireless electrical device; small & can be implanted in muscle; external controller sends signals for control; can emit electrical current to cause contraction
Brain computer interfaces
a communication system that does not depend on the brain's normal output pathways of peripheral nerves and muscles
Two approaches to BCIs
1) EEG based techniques (electrodes on surface of head) 2) Single unit recording (implant in brain)
deep brain stimulation
tx for parkinson's (also tourettes & depression); reduces tremor via electrical impulses that disrupt problem brain activity; last resort
implanted into peripheral nervous system; specialized subcatagory of FES (pacemaker, cochlear implants, bionic arms)
2 types of hearing loss
1) conductive (volume of sound reduced) 2) sensory hearing loss (damage to cochlea- this is when implants would be used)
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