Correlations of correlations are not reliable statistics: implications for multivariate pattern analysis.

Bertrand Thirion^{a b}, Fabián Pedregosa^{a c}, Michael Eickenberg^{a b}, Gael P. Varoquaux^{a b}

1. ^aPARIETAL - Modelling brain structure, function and variability based on high-field MRI data (Neurospin, CEA Saclay, Bâtiment 145, 91191 Gif-sur-Yvette Cedex - France)
2. ^bUNATI - Unité Analyse et Traitement de l'Information (France)
3. ^cSIERRA - Statistical Machine Learning and Parsimony (INRIA 23 avenue d'Italie 75013 Paris - France)