An Interconnected Brain: the New Vision of Neuroscience
The latest research on brain function and its implication in language is revolutionizing our understanding of the human brain, especially in cases of brain injury.
Today, more and more experts agree in describing the brain not as a set of isolated areas, but as an interconnected network of routes, stations and links, very similar to a city’s subway map. Some areas would be large “central stations”, while others would act as transfer points or branches that connect different functional lines.
How Was this Model of Brain Networks Discovered?
This new vision of the brain has been possible thanks to advanced tools such as functional magnetic resonance imaging (fMRI), magnetoencephalography (MEG) and quantitative electroencephalogram (QEEG).
These technologies allow us to observe brain activity in real time and better understand how the different regions of the brain communicate during motor, cognitive or linguistic tasks.
Language: Lines, Stations and Key Connections
One of the functions most affected after a stroke is language. Science has identified two essential “stations”:
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Broca’s area: linked to verbal expression
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Wernicke’s area: related to language comprehension
These areas communicate through two major “subway lines”:
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The dorsal network, which connects word processing with the motor centers of speech
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The ventral network, which links words with their meaning
What Happens when a “Line” Fails?
If any of these key stops, links or routes suffers a “breakdown” due to injury, the fluid communication between regions is interrupted, leading to language disorders such as aphasia.
Thanks to this network model, professionals can more accurately identify where the alteration is and how to intervene in a personalized way.
Implications for Neurorehabilitation
Visualizing the brain as a complex and dynamic functional network allows us to better adjust the therapeutic strategies and adapt each intervention to the structure and individual needs of the patient.
At FIVAN, we apply this interconnected vision of the brain to develop more effective and evidence-based approaches, incorporating technologies such as QEEG, tDCS or functional neuroimaging.
📷 Image: Martinos Center for Biomedical Imaging – Human Connectome Project
