Vitreous humor — the clear, gel-like substance that fills the space behind the lens of the eye and supports the shape of the ...

Dr. 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.

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.

The CON “is one of the ‘smartest’ areas of the brain, and we’re seeing it connect very strongly with these regions of primary motor cortex.” This alters our perception of the primary motor cortex's ...

More information: Yu Qi et al, Human motor cortex encodes complex handwriting through a sequence of stable neural states, Nature Human Behaviour (2025). DOI: 10.1038/s41562-025-02157-x ...

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 ...

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).

Study: A somato-cognitive action network alternates with effector regions in motor cortex. Image Credit: r.classen/Shutterstock.com Background The human motor cortex was initially described as a ...

Schematic highlighting the essential role of dopaminergic inputs from the VTA to M1 in motor learning. Credit: Nature Communications (2025). DOI: 10.1038/s41467-024-55317-4 ...