Parts of Albert Einstein’s brain are visibly unlike those of
most people and this could help account for his genius according to a new study.
In it, Florida State University evolutionary anthropologist
Dean Falk and colleagues explain for the first time the entire thinker cortex, of
Einstein’s brain from a test of 14 recently discovered photographs.
The researchers compared the path breaking physicist’s brain
to 85 normal human brains and, in light of current imaging studies, interpreted
what they called its unusual features. They examined relative sizes of
different sections and the pattern of sulci, or surface folds.
Although the over all size and asymmetric shape of
Einstein’s brain were normal, the prefrontal, so ma to sensory, primary motor,
parietal, chronological and occipital cortices were strange,” said Falk,
referring to exact sections of the cerebral cortex.
The prefrontal cortex is known as the seat of cognitive analysis
and abstract thought, and is sometimes referred to as the “CEO of the brain.
Specific parts of Einstein’s prefrontal cortex are “relatively expanded, Falk
and colleagues wrote, “which may have provided underpinnings for some of his
extraordinary cognitive abilities.
These same brain areas are associated with the emergence of
higher cognitive abilities in evolution, they added.
The findings were published Nov. 16 in the journal Brain.
The part of Einstein’s cerebral cortex the occipital lobe
associated with the processing of visual information was very convoluted compared to the average, Falk
and colleagues noted. This may have reflected extra processing power for
mentally visualizing things, they suggested.
Upon Einstein’s death in 1955, his brain was removed and
photographed from multiple angles with the permission of his family. Furthermore,
it was sectioned into 240 blocks from which microscope slides were prepared.
A
great majority of the photographs, blocks and slides were lost from public
sight for more than 55 years.
The photos used by the researchers are held by
the National Museum of Health and Medicine in Silver Spring, Md.
The paper also publishes a roadmap to Einstein’s brain prepared
in 1955 by the physician Thomas Harvey to illustrate the locations within Einstein’s
previously whole brain of 240 dissected blocks of tissue.
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