What is the best similarity measure for motion correction in fMRI time series?

L Freire, A Roche, JF Mangin - IEEE transactions on medical …, 2002 - ieeexplore.ieee.org
… a better similarity measure to drive … time series and actual data stemming from a 3T magnet.
It is shown that these methods are more robust than the usual difference of squares measure

On clustering fMRI time series

C Goutte, P Toft, E Rostrup, FÅ Nielsen, LK Hansen - NeuroImage, 1999 - Elsevier
similarities in activation between voxels. We employ a novel metric that measures the similarity
… The aim of this contribution is to focus on the application of clustering to fMRI time series

Reliability of fMRI time series: Similarity of neural processing during movie viewing

R Schmälzle, MA Imhof, C Grall, T Flaisch, HT Schupp - Biorxiv, 2017 - biorxiv.org
… (inter-subject correlations of aggregate time-courses) (Hasson et al., 2004)… fMRI time series
recorded from 24 viewers during the first viewing of the movie clips. To measure the similarity

Cluster analysis of resting-state fMRI time series

A Mezer, Y Yovel, O Pasternak, T Gorfine, Y Assaf - Neuroimage, 2009 - Elsevier
… We found that the initial number of clusters (k) did not have a clear effect on the similarity
between the atlas and the rest fMRI clusters and therefore we set the number of clusters k to 12 (…

Analysis of fMRI time series with mutual information

V Gómez-Verdejo, M Martínez-Ramón… - Medical image …, 2012 - Elsevier
… In this paper, a different point of view to solve the fMRI problem is addressed. The proposed
approach is intended to find the voxels that are necessary to rebuild the stimulus signals of …

Biclustering fMRI time series: a comparative study

EN Castanho, H Aidos, SC Madeira - BMC bioinformatics, 2022 - Springer
… and the temporal one), slices of figures or multivariated time series [4, 5]… fMRI time series.
The most popular form of unsupervised machine learning is clustering, which uses the similarity

[PDF][PDF] Clustering fMRI time series

BT Yeo, W Ou - 2004 - people.csail.mit.edu
… of fMRI clustering. By defining a similarity measure between different time series, we hope
to group voxels with similar time series. The underlying assumption is that voxels with similar …

Unsupervised clustering of fMRI and MRI time series

A Meyer-Bäse, A Saalbach, O Lange… - … Signal Processing and …, 2007 - Elsevier
… signal time series at each pixel (pixel time course, PTC). Cluster analysis for both fMRI and …
pixels together based on the similarity of their intensity profile in time. In the clustering process…

A multistep unsupervised fuzzy clustering analysis of fMRI time series

MJ Fadili, S Ruan, D Bloyet… - Human brain mapping, 2000 - Wiley Online Library
… voxels in the fMRI context), c ≥ 2 is the number of clusters in the set and d(x k ;v i ) is the
similarity measure between a datum and a centroid. The measure d is any metric induced by an …

Detecting network modules in fMRI time series: a weighted network analysis approach

JA Mumford, S Horvath, MC Oldham, P Langfelder… - Neuroimage, 2010 - Elsevier
… Since we want to distinguish between positive and negative correlations, we use a signed
similarity measure defined as s ij = r ij + 1 2 and then the soft power adjacency function is …