Uses of the campus Grid in Cybernetics

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30 Νοε 2013 (πριν από 3 χρόνια και 11 μήνες)

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Uses of the campus Grid in Cybernetics

Ian Daly,

Dr
Slawomir

J.
Nasuto
,

Prof. Kevin Warwick


17
th

June 2009


BCIs allow control of a computer by thought
alone.


Allows individuals with severe motor
impairments greater levels of communication
and environmental control.


Uses:


Typing programs; Email, Text to speech, Twitter etc.


Environment; Lighting, TV, Wheelchair control etc.


Games; Table tennis, bio
-
feedback etc.


Prosthetics.


Invasive vs. Non
-
invasive



Control vs. Goal orientated



P300 based



ERS / ERD based



Motor imagery



Stimuli presentation



Data recording


& pre
-
processing



Feature extraction



Training and classification

http://ida.first.fraunhofer.de/projects/bci/competition_ii/albany_desc/albany_desc_ii.html

http://www.musicandmeaning.net/issues/showArticle.php?artID=3.5

http://www.jvrb.org/archiv/760/index_html?set_language=en&cl=en


Machine learning and signal processing


ICA, EMD, HMMs, Phase synchronisation


Artefact removal


Extraction of ERPs from single trials


Automated feature selection


Models for simulated ERP generation.


New types of BCI paradigm


speech imagery


Alternative hardware development



Speech imagery


Template method investigated for classification of
speech related EEG.


Large parameter space.


Multiple parameter subsets simultaneously
evaluated on Condor.


Quickly able to demonstrate that template method
over simplifies signal variability.



Feature selection


EEG can be described by an infinite number of
different features.


Feature selection algorithms
-

large search space.


GA’s


Swarm intelligence


Novel algorithms...


Condor allows quick traversal of the search space of
possible features.


Need for newer / faster / more intuitive BCIs


Faster, more efficient control and communication


Greater ease of use


More robust and reliable


New BCI paradigms and more efficient
algorithms in development.


Brain signal can be described in an infinite
number of different ways.


Grid computing presents an effective way of
investigating some of these possibilities.

Questions?

www.ucdmc.ucdavis.edu