Gordon noticed that the MRI data suggested there were important areas between Penfield's sections. These areas of cortex had lots of connections, but not to muscles.

Since the 1930s, the so-called homunculus map has shown how different parts of the brain's motor cortex may control movement to different parts of the body. But it may be missing an important network ...

Functional MRI data were obtained from two highly sampled participants (64.0 runs, 244.0 minutes per individual) during the blocked performance of 25 movements and a new event-associated task with ...

HAMILTON: Ultimately, Dosenbach says this led to a new map of the motor cortex. DOSENBACH: There's two interleaved systems. So it's a checkerboard pattern. It's specific body parts.

That map of the primary motor cortex — the motor homunculus — shows how this brain region is divided into sections assigned to each body part that can be controlled voluntarily (SN: 6/16/15).

Sagittal MRI slice with highlighting indicating location of the anterior cingulate cortex (ACC). Source: Geoff B. Hall/CCO 1.0 Public Domain New research sheds light on how an often overlooked ...

Chiari Malformation Type II: (Left and Middle) T2-weighted axial MRIs; (Right) T1-weighted sagittal MRI. The axial scans show several abnormalities, including descent of the cerebellar tonsils, an ...