Since his work starting in the 1930s, Roger Penfield’s homunculus has reigned supreme in neuroscience, but new findings add a twist to this classical view.
The classical view of how the human brain controls voluntary movement might not tell the whole story.— shows how this brain region is divided into sections assigned to each body part that can be controlled voluntarily . It puts your toes next to your ankle, and your neck next to your thumb. The space each part takes up on the cortex is also proportional to how much control one has over that part. Each finger, for example, takes up more space than a whole thigh. .
The fMRI data revealed which parts of the brain activated at the same time as each task was done, allowing the researchers to trace which regions were functionally connected to one another. Seven more participants were recorded while not doing any particular task in order to look at how brain areas communicate during rest.
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