Dimensionality and degrees of freedom in fmri data analysis - A comparative study

被引:0
|
作者
Rydell, J [1 ]
Borga, M [1 ]
Lundberg, P [1 ]
Knutsson, H [1 ]
机构
[1] Linkoping Univ, Dept Biomed Engn, S-58183 Linkoping, Sweden
关键词
D O I
暂无
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Two- and three-dimensional isotropic and anisotropic spatial filters for adaptive fMRI data analysis are compared in terms of activation detection sensitivity and specificity. Evaluations using both real and artificial data are presented. It is shown that three-dimensional anisotropic filters provide superior activation detection performance.
引用
收藏
页码:988 / 991
页数:4
相关论文
共 50 条
  • [1] Spatial smoothing of autocorrelations to control the degrees of freedom in fMRI analysis
    Worsley, KJ
    [J]. NEUROIMAGE, 2005, 26 (02) : 635 - 641
  • [3] Estimation of the intrinsic dimensionality of fMRI data
    Cordes, D
    Nandy, RR
    [J]. NEUROIMAGE, 2006, 29 (01) : 145 - 154
  • [4] Analysis of fMRI Data Using Classical and Bayesian Approaches: A Comparative Study
    Mohamed, Mohamed A.
    Abou-Chadi, Fatma
    Ouda, Bassem K.
    [J]. WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006, VOL 14, PTS 1-6, 2007, 14 : 924 - +
  • [5] Consistent Estimation of Dimensionality for Data-Driven Methods in fMRI Analysis
    Seghouane, Abd-Krim
    Shokouhi, Navid
    [J]. IEEE TRANSACTIONS ON MEDICAL IMAGING, 2019, 38 (02) : 493 - 503
  • [6] Investigating the intrinsic dimensionality of FMRI data for ICA
    Beckmann, CF
    Noble, JA
    Smith, SM
    [J]. NEUROIMAGE, 2001, 13 (06) : S76 - S76
  • [7] Reduction of the dimensionality and comparative analysis of multivariate radiological data
    Seddeek, M. K.
    Kozae, A. M.
    Sharshar, T.
    Badran, H. M.
    [J]. APPLIED RADIATION AND ISOTOPES, 2009, 67 (09) : 1721 - 1728
  • [8] Less is More: Dimensionality Analysis of Pure Random Orthogonal Search Through the Lens of Degrees of Freedom
    Hameed, A. S. Syed Shahul
    Allwin, R.
    Singh, Manindra Narayan
    Rajagopalan, Narendran
    Nanda, Animesh
    [J]. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, 2024,
  • [9] Dimensionality reduction for improved source separation in fMRI data
    Mappus, Rudolph L.
    Minnen, David
    Isbell, Charles Lee, Jr.
    [J]. BIOSIGNALS 2008: PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON BIO-INSPIRED SYSTEMS AND SIGNAL PROCESSING, VOL II, 2008, : 308 - 313
  • [10] COMPARATIVE ANALYSIS OF INHIBITION TASKS: AN FMRI STUDY
    Marakshina, Julia
    Vartanov, Alexander
    Kiselnikov, Andrey
    Kozlovskiy, Stanislav
    Ushakov, Vadim
    Buldakova, Natalia
    Skiteva, Lyudmila
    [J]. PSYCHOPHYSIOLOGY, 2018, 55 : S65 - S65