General anesthesia evokes a dual mystery: How does it disrupt consciousness, including sensory perception, and what might that say about the nature of consciousness. A new study led by researchers at ...

New research from the DZNE – German Center for Neurodegenerative Diseases – has found that some areas of the human brain ...

Graphesthesia, also called graphagnosia, is the ability to recognize symbols when they’re traced on the skin. “Graph” means writing and “esthesia” means sensing. This ability is a measure of cortical ...

For 200 years, scientists have speculated that different parts of the brain were responsible for different types of activity and behaviors and have tried to build maps of the brain, carving it up into ...

Under propofol general anesthesia, sensory input still reaches the brain, but signals do not spread. A new study suggests consciousness requires cortical regions to all be 'on the same page.' General ...