Living with Parkinson's disease can mean facing 'freezing' episodes, where a person suddenly feels like their feet are glued to the floor. These moments are often frightening and can make moving around safely very difficult. Researchers looked at 33 different studies to see what is happening in the brain when these episodes occur.
The analysis found a consistent link between these freezing moments and a specific part of the brain called the right inferior frontal gyrus. This area is part of the prefrontal cortex, which helps with planning and movement. While the study found this specific cluster, it did not find evidence that the issue is only on one side of the brain.
Because Parkinson's affects everyone differently, the researchers noted that the variety in how the disease progresses can make it hard to pinpoint every single brain change. However, identifying this specific area helps experts better understand the underlying biology of why movement suddenly stops.
Common questions
What part of the brain is linked to freezing in Parkinson's?
The study found a consistent link between freezing of gait and a specific area called the right inferior frontal gyrus. This part of the brain is located in the prefrontal cortex. Identifying this specific area helps researchers understand the neural patterns associated with these sudden movements stops.
Is the issue only on one side of the brain?
While the study found a consistent cluster in the right inferior frontal gyrus, it did not find evidence of overall hemispheric lateralization. This means that while a specific spot was identified, the data did not show the issue was limited only to one side of the brain.
Why is it hard to pinpoint every brain change in Parkinson's?
The study noted that there is a lot of variety in how the disease affects different people. This variety in the underlying biology of the condition can make it difficult to find consistent brain regions across all patients with the disease.
