22 Dec
2017
22 Dec
'17
4:33 p.m.
Hi,
I came across several papers e.g. http://www.sciencedirect.com/science/article/pii/S2213158215000856 where gyrification index (GI) is indicated in 'mm'.
By definition GI is the ratio of two quantities: inner contour/outer contour (http://en.citizendium.org/wiki/Gyrification), therefore, shouldn't GI be 'unitless' then?
I am not sure which way is this correct?
Thanks.