 |
|
||||
 |
 |
 |
 |
 |
 |
 |
 |
|
The dangers of double dipping |
DOI: 10.1038/nn.2303 |
Analyses of data from functional magnetic resonance imaging (fMRI) and studies tracking electrical activity in the brain can generate misleading results, suggests an article online this week in Nature Neuroscience. |
Techniques such as fMRI, which provides images of the brain, and electrophysiology, which record electrical activity from many neurons at once, generate a large amount of data. Some of this data is intrinsically ‘noisy’, being accompanied by other background activity, like listening to a radio station with poor signal quality. In order to enhance the signal of interest, the raw data is substantially analyzed, often using complex transformations. |
|
Copyright © 2003-2008 HealthOrbit, Inc. All rights reserved. |
Terms of Use
|
Copyright
and Intellectual Property
|
Disclaimers
|