Lateralized Processing: The right brainstem (LC) regulates vicarious fear, while the left handles direct fear. Vicarious Fear Pathway: A specialized LC→ACC circuit activates only during observed ...

For nearly a century, scientists have recognized that different regions of the brain’s cortex are responsible for controlling various body movements. This understanding dates back to the 1930s, when ...

Reviewer #2 (Public Review): Summary: This study looks at sex differences in alcohol drinking behaviour in a well-validated model of binge drinking. They provide a comprehensive analysis of drinking ...

Well, besides the motor cortex, according to the study other parts of the brain involved with learning new actions and understanding language also get revved up when we read action verbs.

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 ...

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.

The authors of the new study set out to replicate Penfield’s map of the motor cortex using modern functional magnetic resonance imaging (fMRI). As well as experiments on seven people, they mined ...

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.

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 ...

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).

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 ...