How Muscles Are Paralyzed During Sleep: Finding May Suggest New Treatments for Sleep Disorders
Two powerful brain chemical systems work together to paralyze skeletal muscles during rapid eye movement (REM) sleep, according to new research in the July 18 issue ofThe Journal of Neuroscience. The finding may help scientists better understand and treat sleep disorders, including narcolepsy, tooth grinding, and REM sleep behavior disorder.
Unprecedented accuracy in locating brain electrical activity with new device
Researchers at Aalto University in Finland have developed the world's first device designed for mapping the human brain that combines whole-head magnetoencephalography (MEG) and magnetic resonance imaging (MRI) technology. MEG measures the electrical function and MRI visualizes the structure of the brain. The merging of these two technologies will produce unprecedented accuracy in locating brain electrical activity non-invasively.
Modelos de regulación del ritmo circadiano del sueño
Los estados de sueño y vigilia están mediados por cambios en interconexiones de sistemas neuronales que son modulados por diversos neurotransmisores [Chokroverty; 2010].