Exam (elaborations)
IHUMAN QUIZ QUESTIONS AND ANSWERS
- Course
- Institution
IHUMAN QUIZ QUESTIONS AND ANSWERS
[Show more]
Content preview
IHUMAN QUIZ QUESTIONS ANDANSWERS
Electrocorticography (ecog) - answer-electrodes placed directly on the brain to
determine precise regions of particular neural activity
Cortical implant - answer-inserted into brain's cortex and transmits signal to external
device. Restore sight and hearing, improve cognitive function, and enable the paralyzed
to move cursors with brain.
Neural dust - answer-wireless, battery-free miniature implants fitted w sensors and
stimulators and powered by ultrasound. Three mm long and soon will be sub-millimeter.
Neural lace - answer-arrays of tiny electrodes placed on polymer wires or threads
injected into the brain. 3,072 electrodes per array (neuralink)
Neuropixels - answer-multi-electrode array use to record activity of hundreds of
neurons.
Stentrode - answer-stents with electrodes on their outer sides that are injected via
catheters into blood vessels. Presses up against the blood-vessel wall to record brain
activity. Treatment of neurological conditions to mind control of a wheelchair.
Optogenetics - answer-transgenic technique that combines genetics and light to control
targeted cells in living tissue. Unprecedented precision.
Cochlear implant (ci) - answer-provides sense of sound to people w severe hearing
loss. Outside component equipped with microphones that convert sound into electrical
signals which, when transmitted to internal component, stimulate the cochlear nerve.
Deep brain stimulation (dbs) - answer-deep insertions of electrodes powered by
implantable pulse generator (ipg). Just below clavicle or abdomen. Parkinson's,
dystonia and tremor and potentially tourette's/ocd. Chronic pain, treatment-resistant
depression and drug resistant epilepsy.
Vagus nerve stimulation (vns) - answer-electrical current wrapped around left vagus
nerve running from brain stem to abdomen and uses an ipg under the collarbone.
Pulses activate neurotransmitters, changing brain networks. Dosages can be adjusted
from outside the body using a magnetic wand. Depression, substance abuse, and drug
resistant epilepsy.
Retinal implants - answer-microelectrodes (25-100) surgically attached beneath the
surface of the retina. They generate signals from incoming light that bypass
photoreceptors and typically provide partial restoration of vision.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller biggdreamer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
70840 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now