PRES: A New Myeloarchitectonic Map of the Human Neocortex Flashcards
What is myeloarchitectonics?
A neuroanatomical field focusing on the arrangement and density of myelinated fibers in the cerebral cortex.
How do myeloarchitectonics differ from cytoarchitectonics?
Myeloarchitectonics studies myelinated fibers, while cytoarchitectonics examines neuronal cell bodies.
Who developed the only combined cyto- and myeloarchitectonic map of the human cortex?
Campbell, in 1905.
What template was used for the new myeloarchitectonic map?
The colin27 brain aligned to the MNI305 template.
How many myeloarchitectonic areas does the new map contain?
180 areas.
Name one key application of this myeloarchitectonic map.
Morphological interpretation of functional neuroimaging results.
Which brain lobe has the most myeloarchitectonic areas?
The frontal lobe, with 64 areas.
What technique was used historically to identify fiber layers in the cortex?
The Weigert technique.
Who were Oscar and Cécile Vogt?
Neuroscientists who significantly contributed to myeloarchitectonic studies between 1910 and 1970.
How does Brodmann’s map compare to the Vogt-Vogt map in complexity?
Brodmann’s map is simpler, with about 40 areas, whereas the Vogts proposed around 200 areas.
Why is the colin27 template significant in neuroimaging?
It provides a high-resolution standard for cortical mapping and alignment.
What are the ‘outer and inner stripes of Baillarger’?
Tangentially organized myelinated fiber layers visible in the cortex.
How were data from multiple brains aligned to the template?
Using computer-aided topological transformations.
Which cortex subdivision does the insula belong to in this mapping?
It contains 6 myeloarchitectonic areas.
What was the Vogts’ ultimate research goal?
To create a unified cytoarchitectonic and myeloarchitectonic map of the cortex.
