Why do we sometimes have trouble paying attention?
Patterns of functional connectivity reliably predict when people were more or less focused on a task.... Read More...
functional connectivity
Time of day affects global brain fluctuations
The strength of the brain's global signal fluctuation decreases as the day progresses.... Read More...
Binaural beats synchronize brain activity, don’t affect mood
Binaural beats, a form of auditory illusion, caused far apart brain regions to synchronize with each other at a different frequency than the beat. The auditory illusion did not, however, alter mood. ... Read More...
Research points to potential brain marker of stress and its effects on problem solving
Genetics testing revealed those with a greater susceptibility to stress have at least one copy of a variation in the serotonin transporter gene. Additionally, changes to connections in the middle temporal gyrus related to changes in cognitive performance during stress.... Read More...
Brain networks come ‘online’ during adolescence to prepare teenagers for adult life
Functional connectivity in the human brain changes in two distinct ways during adolescence. ... Read More...
Imaging reveals pathways behind depression
Two new neuroimaging studies shed light on structural and functional abnormalities in the brains of those with major depressive disorder.... Read More...
Finding Upends Theory about the Cerebellum’s Role in Reading and Dyslexia
New findings dispute the popular cerebellar deficit hypothesis of dyslexia. Researchers report the cerebellum is not engaged during reading in typical readers and does not differ in children with dyslexia.... Read More...
Brain scans may provide clues to suicide risk
Neuroimaging can be used to assess a person's risk of suicidal behavior. Those with mood disorders, a history of suicidal thoughts, and those with a history of suicide attempts have less connectivity in the cognitive control network. They also have reduced connectivity between the cognitive control network and the default mode network.... Read More...
Drops in income may not only hurt the wallet, they may harm the brain
Experiencing an income drop of 25% or more impacts brain health and cognitive ability during middle age.... Read More...
What the brains of people with excellent general knowledge look like
An individual's level of general knowledge is associated with structural brain network connectivity. Fluid intelligence is best predicted by cortex volume in males, and by functional network connectivity in females. ... Read More...
What stress does to the brain
A new study sheds light on how the brain changes as a result of chronic stress. Selective noradrenaline release rewires connectivity patterns between different brain regions. Activity in the amygdala and networks that process sensory stimuli increased. ... Read More...
Structure of brain networks is not fixed
Brain networks are spatially and functionally fluid, and not static, as previously believed.... Read More...