The parcellation of cortical areas using replicator dynamics in fMRI

NeuroImage
Jane NeumannGabriele Lohmann

Abstract

In this paper, we show that replicator dynamics can be used as an exploratory analysis tool to detect subregions of cortical areas on the basis of the similarity between fMRI time series. As similarity measure, we propose to use canonical correlation, a multivariate extension to the typically employed Pearson's correlation coefficient. We applied the replicator process to data obtained from two different experimental paradigms in the search for subregions within the left lateral frontal cortex (LFC). In both cases, the replicator process resulted in a parcellation that corresponds to a recently suggested subdivision of the LFC in anterior-posterior direction. Most notably, these results were very consistent when compared across different measurements of a single subject and across a group of subjects.

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Citations

Jun 9, 2007·Human Brain Mapping·Evelyn C FerstlD Yves von Cramon
Mar 29, 2007·Human Brain Mapping·Jane NeumannGabriele Lohmann
Oct 31, 2007·Journal of Magnetic Resonance Imaging : JMRI·Karsten MüllerGabriele Lohmann
Feb 1, 2011·Journal of Neuroscience Methods·Filip Deleus, Marc M Van Hulle
Oct 10, 2009·NeuroImage·Jane NeumannGabriele Lohmann
Jun 28, 2020·Human Brain Mapping·Xiaowei ZhuangDietmar Cordes

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