FLORIDA STUDY: Fingers have sex hormone receptors!

Martijn (admin) wrote:

Sari wrote:...

Ok, so if we're talking about sex hormone receptors, isn't it to do with the touch?, not finger length. Wasn't the finger length the connection with the mice only a comparison to humans? I think we have sex hormone receptors in our hands, .. I know if I touch something that feels nice...well..it feels nice.

Hi Sari,

Yes, of course... what you write about the 'touch experience' is very true.

However, this study does not relate to the 'touch experience'. Because this study only relates to the issue how the length of the fingers directly relates to hormonal life.

So, I don't think that this study is suggesting anything about our 'touch experience'.

(Not sure that I have understood your words, would you like to see your question answered...? Or were you just sort of thinking out loud?)


Anyway, thanks for sharing your thoughts!

Lynn wrote:I always had a problem that the 2D:4D explanation was based on an assumption. So it is very encouraging that these results in mice go some way to confirming the assumption about pre-natal exposure to sex hormones being directly linked to 2D:4D ratio.
The only research I remember reading before was an experiment done on pheasant eggs.
http://www.springerlink.com/content/x680rhqt25048744/

Roosi wrote:

Off topic

About the 'touch experience'

Women Tend to Have Better Sense of Touch Due to Smaller Finger Size
http://ts-si.org/biology/21823-women-tend-to-have-better-sense-of-touch-due-to-smaller-finger-size

Research in The Journal of Neuroscience
http://www.jneurosci.org/content/29/50/15756.long

Patti wrote:
Thanks Roosi!
Interesting that they have focused on the number of sweat pores in a given space. I wish they had taken a few extra steps and made note of the pattern of the fingerprint involved as the sweat pores are only in the ridges and not in the groove between ridges.

As it is, the results appear to show a difference between male and female but nothing about the comparisons within the male and female groups.

Roosi wrote:

Another interesting study
Fingerprint Ridge-Count Difference between Adjacent Fingertips (dR45) Predicts Upper-Body Tissue Distribution: Evidence for Early Gestational Programming

http://aje.oxfordjournals.org/content/153/4/338

The size of a fetal fingertip might be influenced by factors that stimulate or inhibit growth along the developmental axis extending from the brain to the lower limbs. Each fingertip is related neurologically to a spinal-cord segment in a range that includes the sixth through the eighth cervical levels. We hypothesized, therefore, that a large ridge-count difference between fingers on the same hand might reflect circumstances associated with relative inhibition of caudal growth. An embryo or fetus developing under such conditions might accumulate relatively less tissue in the lower body.