Co-activation patterns distinguish cortical modules, their connectivity and functional differentiation

By Simon B. Eickhoff, Danilo Bzdok, Angela R. Laird, Christian Roski, Svenja Caspers, Karl Zilles, Peter T. Fox. NeuroImage, 2011

477 citations recorded by the source corpus.

The organisation of the cerebral cortex into distinct modules may be described along several dimensions, most importantly, structure, connectivity and function. Identification of cortical modules by differences in whole-brain connectivity profiles derived from diffusion tensor imaging or resting state correlations have already been shown. These approaches, however, carry no task-related information. Hence, inference on the functional relevance of the ensuing parcellation remains tentative. Here, we demonstrate, that Meta-Analytic Connectivity Modelling (MACM) allows the delineation of cortical modules based on their whole-brain co-activation pattern across databased neuroimaging results. Using a model free approach, two regions of the medial pre-motor cortex, SMA and pre-SMA were differentiated solely based on their functional connectivity. Assessing the behavioural domain and paradigm class meta-data of the experiments associated the clusters derived from the co-activation based parcellation moreover allows the identification of their functional characteristics. The ensuing hypotheses about functional differentiation and distinct functional connectivity between pre-SMA and SMA were then explicitly tested and confirmed in independent datasets using functional and resting state fMRI. Co-activation based parcellation thus provides a new perspective for identifying modules of functional connectivity and linking them to functional properties, hereby generating new and subsequently testable hypotheses about the organization of cortical modules.

Subfields: Cognitive Neuroscience, Radiology, Nuclear Medicine and Imaging

View Paper: https://www.semanticscholar.org/paper/ef9af360f36b6e1c1964fdb33b046973485641f0

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Cognitive Neuroscience

  1. Simon B. Eickhoff
  2. Angela R. Laird
  3. John A. Clithero
  4. Peter T. Fox
  5. Olaf Sporns
  6. E. Bullmore
  7. Antonio Rangel
  8. Svenja Caspers

In Radiology, Nuclear Medicine and Imaging

  1. Simon B. Eickhoff
  2. Peter T. Fox
  3. Angela R. Laird
  4. John A. Clithero
  5. Antonio Rangel
  6. Svenja Caspers
  7. E. Bullmore
  8. Daniel Rueckert

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