- Scientists study a psychedelic drug for mood and addiction.
- The drug can change how the brain works.
- Blood flow in the brain is a common scan signal.
- Researchers gave the drug to mice and watched effects.
- Neural firing no longer matched blood flow after dosing.
- A second medicine blocked a receptor and fixed blood flow.
- They tested another psychedelic and saw similar changes.
- Human brain scans showed similar blood-flow changes too.
- This result matters for doctors using brain scans.
Difficult words
- psychedelic — drug that changes perception and feelings
- blood flow — movement of blood through the brainblood-flow
- neural firing — electrical activity from brain cells
- receptor — a protein on cells that binds molecules
- addiction — strong need to keep using a substance
- scan — medical images of the inside of the bodyscans
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever had a medical scan?
- Would you take medicine to change mood?
- Do you think brain scans are useful for doctors?
Related articles
High-fat diet lets gut bacteria reach mouse brains
Emory University researchers found that a short high-fat diet can let live gut bacteria travel to the brain in mice. The bacteria moved along the vagus nerve; returning to a normal diet reduced this effect and researchers call for more study.
Brown study suggests targeting mTORC2 could help fight cancer
Researchers at Brown University report that blocking the mTORC2 protein complex, while leaving mTORC1 active, may stop cancer growth signals without triggering survival pathways. The work offers a new direction for designing cancer drugs.
Brain differences in WTC responders with PTSD
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.