Title
Linear reconstruction of perceived images from human brain activity.
Abstract
With the advent of sophisticated acquisition and analysis techniques, decoding the contents of someone's experience has become a reality. We propose a straightforward linear Gaussian approach, where decoding relies on the inversion of properly regularized encoding models, which can still be solved analytically. In order to test our approach we acquired functional magnetic resonance imaging data under a rapid event-related design in which subjects were presented with handwritten characters. Our approach is shown to yield state-of-the-art reconstructions of perceived characters as estimated from BOLD responses. This even holds for previously unseen characters. We propose that this framework serves as a baseline with which to compare more sophisticated models for which analytical inversion is infeasible.
Year
DOI
Venue
2013
10.1016/j.neuroimage.2013.07.043
NeuroImage
Keywords
Field
DocType
fMRI analysis,Image reconstruction,Linear regression,Regularization
Computer science,Inversion (meteorology),Cognitive psychology,Regularization (mathematics),Artificial intelligence,Linear regression,Iterative reconstruction,Functional magnetic resonance imaging,Pattern recognition,Speech recognition,Gaussian,Decoding methods,Encoding (memory)
Journal
Volume
ISSN
Citations 
83
1053-8119
21
PageRank 
References 
Authors
1.00
14
4
Name
Order
Citations
PageRank
Sanne Schoenmakers1362.70
Markus Barth2534.01
Tom Heskes31519198.44
Marcel Van Gerven432139.35