title: The role of anterior midcingulate cortex in cognitive motor control: evidence from functional connectivity analyses.
abstract: The rostral cingulate cortex has been associated with a multitude of cognitive control functions. Recent neuroimaging data suggest that the anterior midcingulate cortex (aMCC) has a key role for cognitive aspects of movement generation, i.e., intentional motor control. We here tested the functional connectivity of this area using two complementary approaches: (1) resting-state connectivity of the aMCC based on fMRI scans obtained in 100 subjects, and (2) functional connectivity in the context of explicit task conditions using meta-analytic connectivity modeling (MACM) over 656 imaging experiment. Both approaches revealed a convergent functional network architecture of the aMCC with prefrontal, premotor and parietal cortices as well as anterior insula, area 44/45, cerebellum and dorsal striatum. To specifically test the role of the aMCC's task-based functional connectivity in cognitive motor control, separate MACM analyses were conducted over "cognitive" and "action" related experimental paradigms. Both analyses confirmed the same task-based connectivity pattern of the aMCC. While the "cognition" domain showed higher convergence of activity in supramodal association areas in prefrontal cortex and anterior insula, "action" related experiments yielded higher convergence in somatosensory and premotor areas. Secondly, to probe the functional specificity of the aMCC's convergent functional connectivity, it was compared with a neural network of intentional movement initiation. This exemplary comparison confirmed the involvement of the state independent FC network of the aMCC in the intentional generation of movements. In summary, the different experiments of the present study suggest that the aMCC constitute a key region in the network realizing intentional motor control.
authors.affiliation: Institute for Neuroscience and Medicine (INM-1), Research Centre Jülich, Germany; Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University, Düsseldorf, Germany.
authors.forename: Felix
authors.initials: F
authors.lastname: Hoffstaedter
authors.forename: Christian
authors.initials: C
authors.lastname: Grefkes
authors.forename: Svenja
authors.initials: S
authors.lastname: Caspers
authors.forename: Christian
authors.initials: C
authors.lastname: Roski
authors.forename: Nicola
authors.initials: N
authors.lastname: Palomero-Gallagher
authors.forename: Angie R
authors.initials: AR
authors.lastname: Laird
authors.forename: Peter T
authors.initials: PT
authors.lastname: Fox
authors.forename: Simon B
authors.initials: SB
authors.lastname: Eickhoff
mesh_terms: D001921:Brain / Q000502:physiology; D001931:Brain Mapping / Q000379:methods; D056344:Executive Function / Q000502:physiology; D006179:Gyrus Cinguli / Q000502:physiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D009043:Motor Activity / Q000502:physiology; D009434:Neural Pathways / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology*; D012146:Rest / Q000502:physiology
keywords: anterior midcingulate cortex; cognitive motor control; fMRI; meta-analytic connectivity modeling; seed based resting-state analysis