Researchers found a network of brain and facial muscle circuits that generate expressions. Using fMRI in macaque monkeys, they mapped brain areas and showed regions act together with different timing and possible clinical uses.
Photo by Leon Andov, Unsplash
Researchers used PET scans to compare two brain markers — dopamine transporters and synaptic density — in people with Parkinson’s and healthy volunteers. The study shows the usual link between markers breaks down in Parkinson’s.
New imaging research of World Trade Center responders finds measurable brain structure differences linked to long-term PTSD. Researchers used gray-white contrast (GWC) MRI and other markers to distinguish responders with and without PTSD.
Researchers developed a bioluminescent calcium sensor called CaBLAM to record activity inside living brain cells without external light. The tool works in mice and zebrafish and enables long recordings that avoid damage from bright light.
A study in The American Journal of Psychiatry found lower availability of a glutamate receptor called mGlu5 across the brains of autistic adults. Researchers used PET, MRI and EEG and say the result could affect future diagnosis and treatment.
Researchers used fMRI brain scans while people watched movie clips and listened to stories. They found that strong emotional moments make brain regions work together more, and this stronger integration predicts better memory for those moments.
Researchers tested transplanting immature nerve cells into spinal cord injuries in rats. The transplants improved nerve control of circulation — stabilizing resting blood pressure and lowering heart rate — but hormonal responses after injury still rose.