Finger length reveals learning power

Looking at the length of the child's index finger and ring finger can predict how well they will achieve in the college exam. Children with ring fingers longer than forefinger will have higher math scores than literature, while those with the opposite ratio will get higher grades in math.

Scientists already know that intrauterine testosterone and estrogen levels make a difference in finger length, reflecting which areas of the brain are more developed than other brain regions, psychologist Mark Brosnan at Dai Bath, USA, said.

Testosterone exposure from the womb will stimulate the development of the brain region related to math and space skills. This hormone also makes the ring finger longer. And more estrogen levels stimulate brain growth (Photo: Cuttingedgecreations) Related words and making the index finger longer than the ring finger.

To test the relationship with the SAT scores (Scholastic Assessment Test) of the US, Brosnan and colleagues calculated the index finger and ring finger lengths to the nearest 0.01 mm.

Next, the researchers looked at the results of boys and girls' tests and compared them with finger ratios. They found a clear relationship between testosterone exposure from the womb, expressed with the index finger shorter than the ring finger, with a higher math score.

Similarly they found higher scores in girls who were exposed to less testosterone than in the uterus, represented by a ring finger shorter than the index finger.

"It is interesting to see the proportion of fingers that can tell us about your innate learning forces," Brosnan said. In the future the team will explore finger ratios related to behavioral and cognitive problems, such as career paths, or dyslexia.

MT