Journal ArticleDOI
Resampling fMRI time series.
Ola Friman,Carl-Fredrik Westin +1 more
TLDR
This paper discusses resampling methods for finding thresholds in single subject fMRI analysis and shows that the presence of a BOLD response in the time series biases the estimation of the temporal autocorrelation, which in turn leads to biased thresholds.About:
This article is published in NeuroImage.The article was published on 2005-04-15. It has received 51 citations till now. The article focuses on the topics: Resampling & Parametric statistics.read more
Citations
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Journal ArticleDOI
Compressive spatial summation in human visual cortex
TL;DR: This study measured BOLD responses to a systematic set of contrast patterns and discovered systematic deviation from linearity: the data are more accurately explained by a model in which a compressive static nonlinearity is applied after linear spatial summation.
Book
The Statistical Analysis of Functional MRI Data
TL;DR: This book offers researchers who are interested in the analysis of fMRI data a detailed discussion from a statistical perspective that covers the entire process from data collection to the graphical presentation of results.
Journal ArticleDOI
Multiple testing corrections, nonparametric methods, and random field theory.
TL;DR: A narrative aims to give the methodological researcher a historical perspective on this important aspect of fMRI data analysis by drawing connections with the older modalities, PET in particular, and how software implementations have tracked (or lagged behind) theoretical developments.
Journal ArticleDOI
Does Parametric fMRI Analysis with SPM Yield Valid Results? - An Empirical Study of 1484 Rest Datasets
Anders Eklund,Mats Andersson,Camilla Josephson,Magnus Johannesson,Magnus Johannesson,Hans Knutsson +5 more
TL;DR: For a familywise significance threshold of 5%, significant activity was found in 1%-70% of the 1484 rest datasets, depending on repetition time, paradigm and parameter settings, which means that parametric significance thresholds in SPM both can be conservative or very liberal.
Journal ArticleDOI
Finite-sample consistency of combination-based permutation tests with application to repeated measures designs
Fortunato Pesarin,Luigi Salmaso +1 more
TL;DR: In this article, the power of multivariate permutation tests based on Pesarin's combining functions is shown to increase with the number of variables and the noncentrality parameter of the underlying population distribution with respect to each added variable.
References
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Book
An Introduction to Multivariate Statistical Analysis
TL;DR: In this article, the distribution of the Mean Vector and the Covariance Matrix and the Generalized T2-Statistic is analyzed. But the distribution is not shown to be independent of sets of Variates.
Journal ArticleDOI
Nonparametric permutation tests for functional neuroimaging: A primer with examples
TL;DR: The standard nonparametric randomization and permutation testing ideas are developed at an accessible level, using practical examples from functional neuroimaging, and the extensions for multiple comparisons described.
Book
The Fourier Transform and Its Applications
TL;DR: In this paper, the authors provide a broad overview of Fourier Transform and its relation with the FFT and the Hartley Transform, as well as the Laplace Transform and the Laplacian Transform.
Journal ArticleDOI
The Fourier Transform and its Applications.
T. K. Boehme,Ronald N. Bracewell +1 more
Related Papers (5)
Nonparametric permutation tests for functional neuroimaging: A primer with examples
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Controlling the false discovery rate: a practical and powerful approach to multiple testing
Yoav Benjamini,Yosef Hochberg +1 more