New Brain Interface Reveals Details on Visual System
From: R&D Magazine - 12/04/2017
By: Kenny Walter

A new EEG is opening up insight into the brain's visual system.

Researchers from Carnegie Mellon University have developed the "super-Nyquist
density" EEG that can capture the brain’s neural activity at a higher spatial
resolution than ever before.

The new brain-interface technology is the first non-invasive, high-resolution
system that can provide higher density and coverage than existing systems.
Testing showed that the EEG captured more information from the visual cortex
than any of the four standard "Nyquist density" versions tested.

"This has the potential to improve source detection, for example in
localizing the source of seizures in epilepsy," said Amanda Robinson, a
postdoctoral fellow in CMU's Department of Psychology and Center for the
Neural Basis of Cognition (CNBC).

Read the entire article at:
https://www.rdmag.com/article/2017/12/new-brain-interface-reveals-details-visual-system

Links:
Advances to Brain-Interface Technology Provide Clearer Insight into Visual
  System Than Ever Before
https://www.cmu.edu/dietrich/news/news-stories/2017/december/neuroscientists-engineers-new-eeg.html
https://www.mdtmag.com/news/2017/12/advances-brain-interface-technology-provide-clearer-insight-visual-system

Very high density EEG elucidates spatiotemporal aspects of early visual
  processing
https://www.nature.com/articles/s41598-017-16377-3

Amanda Robinson
https://www.cmu.edu/dietrich/behrmannlab/People/current-researchers/amanda-robinson.html

Center for the Neural Basis of Cognition
http://www.cnbc.cmu.edu

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Researchers at Carnegie Mellon University (CMU) say they have developed a
high-density electroencephalogram (EEG) that can quantify the brain's neural
activity at a higher spatial resolution than was previously possible. The
researchers say the "super-Nyquist density" EEG represents the first
non-invasive, high-resolution brain-interface technology of its type. It was
tested by having 16 participants watch pattern-reversing black and white
checkerboards while wearing the new device. According to the results, the
interface collected more information from the visual cortex than any of the
four standard "Nyquist density" versions tested. The new tool is composed of
a modified EEG head cap connected to a 128-electrolode system, which expanded
sensor density by two- to threefold over occipitotemporal brain regions.
"Ultimately, capturing more neural information with EEG means we can make
better inferences about what is happening inside the brain," says former CMU
researcher Amanda K. Robinson. "This has the potential to improve source
detection, for example in localizing the source of seizures in epilepsy."