The homunculus map of the primary motor cortex (left), compared to the updated map (right). The new map includes regions that control whole-body movements. Gordon, et al. via Nature under CC BY 4.0 ...

The new view of primary motor cortex may help explain how the brain solves a difficult problem, Strick says. "Even simple movements require nuanced control of all organ systems," he says. "You ...

Before choice commitment, motor cortex activity already reflects competing response options 5,6,7,8, and if choices are inextricably linked to a specific response during decision formation ...

Nico Dosenbach says one day they noticed something odd in the primary motor cortex, an area that controls muscles. NICO DOSENBACH: It just didn't make sense if the textbook was right.

Textbooks show the primary motor cortex as a continuous ribbon with sections devoted to specific muscle groups, from tongue to toe. That view dates back to the 1930s, when Canadian neurosurgeon ...

As with other parts of the brain, when neurons of the primary motor cortex are damaged they will never regrow or repair. However, the brain can heal itself and regain some lost function through ...

Cerebral Cortex Damage. Damage to any region of the cerebral cortex is typically caused by tumors, autoimmune diseases, bleeding in your brain, or a stroke.Symptoms of possible damage depend on ...

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).

The motor cortex is a part of the mammalian brain and is known to support the planning and control of voluntary body movements. Some past neuroscience studies, however, found that the motor cortex ...