Diff for "MDsystem" - MRC CBU Imaging Wiki
location: Diff for "MDsystem"
Differences between revisions 5 and 6
Revision 5 as of 2012-09-11 09:26:32
Size: 1168
Comment:
Revision 6 as of 2012-09-11 09:26:46
Size: 1015
Comment:
Deletions are marked like this. Additions are marked like this.
Line 4: Line 4:

---- /!\ '''Edit conflict - other version:''' ----


---- /!\ '''Edit conflict - your version:''' ----

---- /!\ '''End of edit conflict''' ----

Functional brain imaging shows many specializations in the human brain. At the same time, it reveals something unexpected – a specific set of regions in the frontal and parietal cortex, active for many different kinds of cognitive demand. We call this multiple-demand or MD cortex. The network was originally defined using predominantly PET data:

[Duncan and Owen, 2000] [Duncan, 2006]

The definition of the MD system has been further refined using fMRI data from seven different tasks of varying demand, described in the publication:

Fedorenko, E., Duncan, J., & Kanwisher, N. (in press). Language-selective and Domain-general Regions Lie Side by Side within Broca's Area. Current Biology.

The full unthresholded volume can be downloaded in Nifti format from this link.

The units are t-statistics from contrasts that isolate cogntive demand, averaged across the seven tasks. The figure below shows the main foci of the multiple demand system when this volume is thresholded at a value of t>1.5.

CbuImaging: MDsystem (last edited 2016-10-26 14:07:43 by DannyMitchell2)