BOMBSHELL STUDY: Twins socially interact in the womb

We already know that fetuses feel pain as early as 17 weeks. We also know that twins in the womb demonstrate physical contact as early as 11 weeks. Mental activity can be detected as early as 20 weeks. But a little-covered scientific study published in 2010 in Italy (noted only in Wired as far as I can tell) concluded that much of the physical contact between fetal twins is actually social and interactive in nature, not just reactive or reflexive.

Newborns come into the world wired to socially interact. Is a propensity to socially oriented action already present before birth? Twin pregnancies provide a unique opportunity to investigate the social pre-wiring hypothesis. Although various types of inter-twins contact have been demonstrated starting from the 11th week of gestation, no study has so far investigated the critical question whether intra-pair contact is the result of motor planning rather then the accidental outcome of spatial proximity. 

Kinematic profiles of movements in five pairs of twin foetuses were studied by using four-dimensional ultrasonography during two separate recording sessions carried out at the 14th and 18th week of gestation. We demonstrate that by the 14th week of gestation twin foetuses do not only display movements directed towards the uterine wall and self-directed movements, but also movements specifically aimed at the co-twin, the proportion of which increases between the 14th and 18th gestational week. Kinematic analysis revealed that movement duration was longer and deceleration time was prolonged for other-directed movements compared to movements directed towards the uterine wall. Similar kinematic profiles were observed for movements directed towards the co-twin and self-directed movements aimed at the eye-region, i.e. the most delicate region of the body. 

We conclude that performance of movements towards the co-twin is not accidental: already starting from the 14th week of gestation twin foetuses execute movements specifically aimed at the co-twin.

There are mounds of scientific evidence to suggest that fetuses are living, feeling, aware human beings very early on in pregnancy. This study seems to be a conclusive flag planted on top of that mound. Anyone who continues to call unborn children a “choice“, a “mass of tissue”, a “growth“, or says that whether it’s life or not is “above my pay grade” should no longer be taken seriously on the issue. The debate is over. The science is settled. A fetus is alive and should be treated as such.
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