To the untrained eye, the brain looks like a wrinkly, pink blob. Flip open any medical textbook, however, and you will probably find a color-coded map of the different regions of the brain, with each area responsible for functions such as speech (pre-frontal cortex), sight (occipital lobe), long-term memory (temporal lobe) and so on.
This sub-division of labour within the brain is a rough guide at best, and many functions actually require rapid communication between multiple brain regions. However, no one part of the brain acts as a control center that integrates signals from various regions. Instead, multiple parallel connections seem to form a dense and overlapping network between the different regions.
Teasing out the pathways linked to specific processes is likely to occupy neuroscientists for decades to come.
The scholars differed on the interpretation of this, and all of this indicates the greatness of the Creator, the Most High
Amazing!!! The answer is connectivity. An instance is the case of functional connectivity which has actually been proven in the literature to be very effective and highly instrumental to understanding the importance of distributed networks in mediating cognitive functions. It then turns out that understanding how integration of different part of the brain coordinates complex actions concertedly would require detailed study of connectivity of neuronal population....with some other concepts though.
If your question is about how functional networks of the brain are formed you are essentially talking about neuroplasticity or in more simple terms - learning. Those not so simple networks are reinforced through the repetition of associations of numerous pairings. The misunderstanding is that the adult functioning brain is essentially controlled by specific regions. Children have less localized function than do adults and adults have localized functions due to expediency of needing a quick response to a given stimulus. This forum cannot take us through the long history since Broca, of localized function, but if the specificity of function was the way in which the brain controls behavior, then rehabilitationists should back up their toolkits and go home. Network analyses are a more important way of understanding interregional brain communications not necessarily with fMRI but electrophysiological means plus systems analyses would be more to the point. If your question is about what is controlling the connectivities, I would give the same answer, repetition, which is why before an infant is even one year old, he/she will have already dropped morphemes not part of the language from recognition. We are continually paring cell connectivities on the basis of experience allowing the formation of more effective networks.
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