Tumors in a movement-planning part of the brain may change wiring far beyond that spot
Original title: Tumor lesions in the supplementary motor area may induce large-scale sensorimotor and cognitive network alterations- A functional and structural connectivity analysis.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
This was brain scans in a small group of people, not a treatment being tested.
The short version
Brain scans suggest a tumor in one movement area can affect how the whole brain works together.
What was studied. Doctors scanned 13 people who had a tumor in the SMA, a brain area that helps plan movement. They also scanned 13 healthy people to compare. All scans were done before any surgery.
What they found. In the patients, the wiring between the SMA and the main movement area looked damaged and smaller. Brain areas that handle thinking worked together less than in the healthy people. Brain areas that handle movement and touch worked together more.
What this means, and what it doesn't
What it could mean: This may help explain why some people have trouble moving or focusing after SMA surgery. Scans done before surgery might one day help doctors plan care. Right now it is new knowledge about the brain, not a new treatment.
What it doesn't mean: This is not a treatment, and it is not a cure. It was a small, early look at brain scans in 13 people, and the authors call it exploratory. It does not change the care you get today. The authors say more studies, with thinking and memory tests, are needed.
Source: PubMed, October 21, 2026 · Read the original
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