Published in

American Institute of Physics, AIP Conference Proceedings

DOI: 10.1063/1.1835228

Links

Tools

Export citation

Search in Google Scholar

Spatial ICA of fMRI data in time windows

Journal article published in 2004 by Juha Karvanen ORCID
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Orange circle
Published version: archiving restricted
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

In this paper the concept of window ICA is proposed for the analysis of fMRI data. In window ICA, spatial ICA is applied in sliding time windows. The approach avoids the problems related to the high number of signals and may give an insight to small changes during the experiment. Usefulness of the proposed approach is demonstrated in an experiment where a subject listened to auditory stimuli consisting of sinusoidal sounds (beeps) and words in varying proportions. The window ICA finds different auditory activations patterns related to the beeps respectively the words.