Subscribe
Subscribe
MY AMERICAN SCIENTIST
LOG IN! REGISTER!
SEARCH
 
Logo IMG
HOME > My Amsci > Restricted Access

Neural Interfaces



Restricted Access The content you've requested is available without charge only to active Sigma Xi members and American Scientist subscribers.


If you are an active member or an individual subscriber, please log in now in order to access this article.

If you are not a member or individual subscriber, you can:



Abstract:

Figure 1. Cross section of a sciatic nerveClick to Enlarge ImageNeural interfaces are engineered devices designed to exchange information with the nervous system. Basic neural interface implants already have important medical roles, but there is far greater potential on the horizon if an array of fundamental biophysical and biomedical challenges can be overcome. The challenges fall in the following categories: selectivity—nerves and motor units must be monitored and addressed uniquely in a noise-ridden environment; stability—optimally, surgically implanted interfaces will interact with specific nerves over a time frame of years; resolution versus invasiveness—a balance must be achieved between the density of the signal and the degree to which delicate physiological structures will tolerate the intrusion of the device; and management of host-interface responses—reducing tissue reactions such as inflammation and scarring, which plague implanted devices today, will be critical in achieving selectivity, stability, and resolution in long-term implants. On the horizon, research is being done on single-cell electronic connections—silicon-neuron hybrid circuits—and alternatives to stimulation by electrical current, including genetic modifications to neuronal tissue that produce neurons activatable by light.


Connect With Us:

Facebook Icon Sm Twitter Icon Google+ Icon Pinterest Icon RSS Feed

Subscribe to Free eNewsletters!

  • American Scientist Update

  • An early peek at each new issue, with descriptions of feature articles, columns, and more. Every other issue contains links to everything in the latest issue's table of contents.

  • Scientists' Nightstand: Holiday Special!

  • News of book reviews published in American Scientist and around the web, as well as other noteworthy happenings in the world of science books.

    To sign up for automatic emails of the American Scientist Update and Scientists' Nightstand issues, create an online profile, then sign up in the My AmSci area.


Read Past Issues on JSTOR

JSTOR, the online academic archive, contains complete back issues of American Scientist from 1913 (known then as the Sigma Xi Quarterly) through 2005.

The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.

View the full collection here.


RSS Feed Subscription

Receive notification when new content is posted from the entire website, or choose from the customized feeds available.


Write for American Scientist

Review our submission guidelines.


Subscribe to American Scientist