![Does the index-to-ring finger length ratio (2D:4D) differ in amyotrophic lateral sclerosis (ALS)? Results from an international online case-control study. - Abstract - Europe PMC Does the index-to-ring finger length ratio (2D:4D) differ in amyotrophic lateral sclerosis (ALS)? Results from an international online case-control study. - Abstract - Europe PMC](https://europepmc.org/articles/PMC5726056/bin/bmjopen-2017-016924f01.jpg)
Does the index-to-ring finger length ratio (2D:4D) differ in amyotrophic lateral sclerosis (ALS)? Results from an international online case-control study. - Abstract - Europe PMC
![The 2D:4D DIGIT RATIO = INDEX FINGER LENGTH vs. RING FINGER LENGTH | Extraversion, Extraversion and introversion, Palm reading The 2D:4D DIGIT RATIO = INDEX FINGER LENGTH vs. RING FINGER LENGTH | Extraversion, Extraversion and introversion, Palm reading](https://i.pinimg.com/originals/cd/75/a3/cd75a34261a52f2d0d235412b7fee5dc.jpg)
The 2D:4D DIGIT RATIO = INDEX FINGER LENGTH vs. RING FINGER LENGTH | Extraversion, Extraversion and introversion, Palm reading
![Masculinized hand (long 4D compare to 2D) represent the dominance behavior | Download Scientific Diagram Masculinized hand (long 4D compare to 2D) represent the dominance behavior | Download Scientific Diagram](https://www.researchgate.net/profile/Muhammad-Islam-78/publication/343612976/figure/fig1/AS:925252326526977@1597608753307/Masculinized-hand-long-4D-compare-to-2D-represent-the-dominance-behavior_Q320.jpg)
Masculinized hand (long 4D compare to 2D) represent the dominance behavior | Download Scientific Diagram
![Frontiers | Digit Ratio (2D:4D) Predicts Self-Reported Measures of General Competitiveness, but Not Behavior in Economic Experiments Frontiers | Digit Ratio (2D:4D) Predicts Self-Reported Measures of General Competitiveness, but Not Behavior in Economic Experiments](https://www.frontiersin.org/files/Articles/307625/fnbeh-11-00238-HTML-r1/image_m/fnbeh-11-00238-g001.jpg)
Frontiers | Digit Ratio (2D:4D) Predicts Self-Reported Measures of General Competitiveness, but Not Behavior in Economic Experiments
![Curious if you fine people in this sub have a 2d:4d finger ratio that doesn't match your birth gender? (M: usually longer ring / F: usually equal or longer index) : r/androgyny Curious if you fine people in this sub have a 2d:4d finger ratio that doesn't match your birth gender? (M: usually longer ring / F: usually equal or longer index) : r/androgyny](https://i.redd.it/po5vlr3hfo821.jpg)