Question
Asked 27th Nov, 2014

How is cortical surface area related to cortical folding?

How is cortical surface area related to cortical folding (e.g. measured by FreeSurfer) and what is the additional value in measuring both variables?

Most recent answer

5th Dec, 2014
Ines Mürner-Lavanchy
Universität Bern
I have a more detailed idea now about what cortical surface area is in a methodological sense. What now interests me is, what does cortical surface area stand for?
As for example cortical thickness is an indicator of number of neurons per cortical column. What neurobiological characteristics are connected to cortical surface area?
Further, one would think that cortical surface area is perfectly correlated with cortical folding. Is that true? Do you have any experiences?

All Answers (4)

The final segmentation is based on both a subject-independent probabilistic atlas and subject-specific measured values.
1st Dec, 2014
Brian Andrew Gordon
Washington University in St. Louis
My impression is that surface area is literally that, if the cortical mantle was spread out into a sheet what would the surface area at. The folding instead is the pattern of folks that make of the gyri. Neither are measures that most labs look at when using Freesurfer (thickness and volume are most common). I would take a look at this paper to get a sense of what Freesurfer means by cortical folding.
1 Recommendation
2nd Dec, 2014
Ines Mürner-Lavanchy
Universität Bern
Thank you very much for your suggestions! Ines

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