In the late stages of pregnancy, the international group of researchers discovered that human embryos show special interest in light configurations that resemble a face. Moreover, they react more than constantly flashing on light. Published in İş Magazine Science of Development (DS).
From the first days of life, babies are interested in people and objects similar to themselves. This helps them to connect with their parents and develop social skills. The preference of faces to other objects is the basis of the child’s early emotional and cognitive development. Scientists decided to find out if this was preference before birth. To do this, they conducted a series of experiments with the participation of 60 healthy pregnant women in different pregnancy: 26, 31 and 37 weeks.
During the study, scientists reflected three red dots from the uterine wall: one face – two points at the same level and one lower (by simulating with eyes and mouth) and in an opposite form – two points at the same level. Eye movements and the head of the embryo were fixed using ultrasound. A reaction to the continuous and flashing light was also tested.
The results showed that the embryos have turned their heads and eyes more frequently to the light configuration of the light configuration that resembles a face. The reaction to the constant light was suddenly stronger than the flashing. The greatest sensitivity to such stimuli was observed in the 37th week of pregnancy, then in embryos at 31 and 26.
The results are confirmed that the preference of babies is back in the uterus. This discovery can deepen the understanding of the early development of the brain and help to examine situations such as autistic spectrum disorder, which is often associated with deteriorated person perceptions. Scientists say that the study is carried out on a relatively small example, so to verify that the results will require additional research on larger subject groups.
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Source: Gazeta
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