Analysis of fMRI time series with mixtures of Gaussians

Vittorio Sanguineti; Claudio Parodi; Sergio Perissinotto; Francesco Frisone; Paolo Vitali; Pietro Morasso; Guido Rodriguez

Analysis of fMRI time series with mixtures of Gaussians

Vittorio Sanguineti, Claudio Parodi, Sergio Perissinotto, Francesco Frisone, Paolo Vitali, Pietro Morasso, Guido Rodriguez

Fondazione "Istituto Neurologico Casimiro Mondino"

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, we discuss the application of the mixtures of Gaussians model for density estimation to the analysis of fMRI time series. We show that, in a classical sensorimotor paradigm (finger-tapping), the performance of the proposed method (in terms of number and location of the detected activity-related voxels) is very similar to that of voxel-by-voxel linear regression, but does not require an explicit model of the activation pattern and/or of the hemodynamic response. In addition, if the number of mixture elements is increased, our method is capable of detecting additional activity-related areas.

Original language	English
Title of host publication	Proceedings of the International Joint Conference on Neural Networks
Publisher	IEEE
Pages	331-335
Number of pages	5
Volume	1
Publication status	Published - 2000
Event	International Joint Conference on Neural Networks (IJCNN'2000) - Como, Italy Duration: Jul 24 2000 → Jul 27 2000

Other

Other	International Joint Conference on Neural Networks (IJCNN'2000)
City	Como, Italy
Period	7/24/00 → 7/27/00

ASJC Scopus subject areas

Software

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Analysis of fMRI time series with mixtures of Gaussians. / Sanguineti, Vittorio; Parodi, Claudio; Perissinotto, Sergio; Frisone, Francesco; Vitali, Paolo; Morasso, Pietro; Rodriguez, Guido.

Proceedings of the International Joint Conference on Neural Networks. Vol. 1 IEEE, 2000. p. 331-335.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Sanguineti, Vittorio

AU - Parodi, Claudio

AU - Perissinotto, Sergio

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AU - Vitali, Paolo

AU - Morasso, Pietro

AU - Rodriguez, Guido

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