Music Is All in the Mind
From: Nature -
03/18/2011
By: Philip Ball
University of Plymouth composer and
computer-music specialist Eduardo Miranda
worked with computer
scientists at the University of Essex to create a
computer-music system
that disabled users can control with their brain. The
system uses
electroencephalography (EEG) to detect the electrical impulses
of
neurons that could help people with severe physical disabilities to
create
music for recreational or therapeutic purposes. "This is an
interesting
avenue, and might be very useful for patients," says
Maastricht University
neuroscientist Rainer Goebel. Brain-computer
interfaces (BCIs) rely on the
user's ability to learn how to self-induce
certain mental states that
brain-scanning technologies can detect. Users
need to be taught how to
associate certain brain signals with different
tasks, which will result in a
specific pattern in the EEG signal. For
instance, the researchers can show
users flashing buttons on a computer
screen, which the users can push by
focusing their attention on it.
"When I realized the potential of a musical
BCI for the well-being of
severely disabled people, I couldn't leave the idea
alone," Miranda
says. "Now I can't separate this work from my activities as
a
composer."
Read the entire article at:
http://www.nature.com/news/2011/110318/full/news.2011.113.html
Links:
Eduardo
Miranda
http://www.plymouth.ac.uk/staff/emiranda
Mental
ping-pong could aid paraplegics
http://www.nature.com/news/2004/040827/full/news040823-18.html
Brain-Computer
Music Interfacing
http://mmd.sagepub.com/content/early/2011/02/28/1943862111399290