Close non-match?

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josher89
Posts: 509
Joined: Mon Aug 21, 2006 10:32 pm
Location: NE USA

Close non-match?

Post by josher89 »

Not scary close since there's a ton of stuff just below this out of sync. However, we don't have a lot of data on distal tips so this was just an interesting NGI candidate. They were #9 on the list; score of around 1200.
Close without marks.JPG
Close with marks.JPG
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g.
Posts: 247
Joined: Wed Jul 06, 2005 1:27 pm
Location: St. Paul, MN

Re: Close non-match?

Post by g. »

Nice job. Good find. Really nice ridge counts and spacings.

Thanks for sharing.

And Agreed, not a lot of examples of distal tip CNMs. In my thesis study involving CNMs, I found it very difficult to find CNMs above the core and towards the tips. Alice White has a very good theory why they might be more rare in that region (compared to pattern forced areas where they are so prevalent).

Her explanation is that as the finger is rapidly growing in size, it is growing lengthwise faster than in other directions (based on what we know from embryology). As an area of rapid growth without any pattern/volar pad swelling/pressure in the region to direct the ridges, it allows for more randomness and is more sensitive to developmental noise, which results in higher specificity.

It's a good theory that makes sense and fits the empirical observations made.

g.
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