From NOVA Next Feb 22, 2017
Key Brain Regions Found To Be Smaller in People With ADHD In the largest study of its kind, research shows people with ADHD have smaller brain regions — including the amygdala, which is responsible for regulating emotions.
Not exact matches
Moreover, researchers
found that the aging
brain's failure to coordinate deep - sleep brainwaves is most likely due to degradation or atrophy of the medial frontal cortex, a
key region of the
brain's frontal lobe that generates the deep, restorative slumber that we enjoy in our youth.
The
findings, including the
key role played by the prefrontal cortex in coordinating all the activated
regions of the
brain, are in line with what neuroscientists have pieced together over the past decades from studies in monkeys and humans.
UC Berkeley researchers have
found that a lack of sleep, which is common in anxiety disorders, may play a
key role in ramping up the
brain regions that contribute to excessive worrying.
The study
found that the drugs were associated with a surge in the neurotransmitter glutamate in
key regions of the
brain.
In an analysis of postmortem human
brain tissue from 137 control subjects, they also
found an association between the ECR47 risk variant and reduced ADGRL3 expression in the thalamus, a
key brain region for coordinating sensory processing in the
brain.
By revealing clear and consistent alterations in
key brain regions, the
findings shed light on the underlying mechanisms of bipolar disorder.
Senior author Dr. Matcheri Keshavan, a Professor at Harvard Medical School, describes their results: «The main
finding was that psychotic disorders are characterized by reduced folding of the cortex in
key brain regions such as the cingulate cortex (a
brain region involved in thinking and emotions).
Using functional magnetic resonance imaging (fMRI), the researchers
found that seniors participating in a youth mentoring program made gains in
key brain regions that support cognitive abilities important to planning and organizing one's daily life.
It
finds that connectedness among the
brain's disparate
regions is a
key factor that separates the plodding from the penetrating.