VUB Research Highlights Crucial Role of Cerebellum in Social and Cognitive Functioning

VUB Research Highlights Crucial Role of Cerebellum in Social and Cognitive Functioning

In a recent publication in *Nature Reviews Neuroscience*, Professor Frank Van Overwalle, from the Brain, Body and Cognition research group at the Vrije Universiteit Brussel (VUB), sheds light on the often-overlooked role of the cerebellum in both motor and social-cognitive processes. His research contributes to a growing shift in the field of neuroscience, which has traditionally focused on the cerebrum.
​ For decades, the cerebellum was primarily associated with motor coordination.

"People with cerebellar abnormalities often experience motor issues," Van Overwalle explains. "For example, they struggle to smoothly touch their nose with a finger. These difficulties highlight the cerebellum's essential role in refining motor movements."
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However, Van Overwalle's research extends beyond motor functions, exploring the cerebellum's involvement in social and cognitive abilities. His findings reveal that abnormalities in the cerebellum not only lead to motor deficits but are also linked to emotional and behavioral disorders. He references research on individuals with autism, demonstrating how non-invasive brain stimulation techniques like magnetic stimulation can improve social task performance.
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"We've seen improvements in the sequence of cognitive tasks in people with autism through magnetic stimulation," says Van Overwalle. "We're now testing more complex tasks to see if these effects can be further enhanced, with the ultimate goal of developing practical treatments for people with autism."
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A notable breakthrough is the use of transcranial electrical stimulation (tES), a more affordable and accessible technique compared to magnetic stimulation. While the effects of tES are still limited, the research group is committed to further development, seeing its potential for wide-scale application in the future.
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This research offers a fresh perspective on the cerebellum's role and paves the way for new treatments for psychiatric and neurological conditions, such as autism spectrum disorders. "Our hope is to refine these techniques further to improve social and cognitive functions in people with autism," concludes Van Overwalle.

Reference: https://doi.org/10.1038/s41583-024-00871-5

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Contact:
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Prof. Em. Frank Van Overwalle: [email protected], tel. 0499 266249 ​
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fMRI is a traditional technique for studying the (small) brain, but nowadays there are more affordable techniques, such as transcranial electrical stimulation. © Frank Van OverwallePost doc researchers Naem Haihambo en Meijia Li perform cognition experiments to measure activity in the cerebellum. © Frank Van Overwalle

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