Psychological characteristics of test tube infants after 28 days
IVF is a kind of baby that is conceived in the laboratory by IVF technology. Their growth process is different from that of naturally pregnant babies. Therefore, in the 28 days after birth, IVF babies show some unique psychological characteristics. The following will elaborate from four aspects: cognition, emotion, social interaction and development.

1、 Cognition
After 28 days of IVF, their cognitive ability showed the following characteristics.
First, IVF is sensitive to external stimuli. Because the stimulation they are exposed to during pregnancy is different from that of naturally pregnant infants, they are more vulnerable to the interference of external stimuli such as sound, light and touch.
Second, their attention span is shorter. IVF babies pay attention to the outside world for a relatively short period of time, which is easy to distract their attention and cannot focus on one thing continuously.
Finally, IVF has a strong memory. The study found that test tube babies performed better in memory after 28 days, and could better remember some simple things or observations.
2、 Emotion
IVF shows the following characteristics in terms of emotion.
First, they have strong attachment to their mothers. In the early stage after birth, IVF babies are more dependent on their mothers and have a stronger emotional response to their mothers' voice and touch.
Secondly, the emotions of IVF babies fluctuate greatly. Because the growth environment of IVF babies is different from that of naturally pregnant babies, they are more prone to emotional fluctuations such as anxiety, fatigue and emotional instability.
Finally, IVF's emotional expression to the outside world is relatively weak. Because they have limited exposure to stimulation during pregnancy, IVF babies may need a longer time to adapt to the external environment and express their feelings.
3、 Social
IVF shows the following social characteristics.
First, they have a high demand for interpersonal communication. After 28 days, IVF babies have a relatively high demand for interpersonal communication, prefer to interact with parents and others, and tend to get more attention and love.
Secondly, IVF has poor social skills. Due to their lack of social experience of naturally pregnant infants during their growth, IVF infants have relatively poor social skills and may need additional training and guidance.
Finally, IVF has a strong sense of discomfort to strangers. Compared with naturally pregnant infants, IVF infants have a relatively strong sense of discomfort to strangers and need more time and effort to adapt to the new social environment.
4、 Development
In terms of development, test tube babies showed the following characteristics after 28 days.
First, their physical development is normal. In the 28 days after birth, there is no significant difference in the physical development between test tube babies and naturally pregnant babies, and they can complete basic physiological functions.
Secondly, IVF infants' motor ability is relatively weak. Due to the limited growth environment, IVF babies may lag behind naturally pregnant babies in their motor ability, and need more time and opportunities to develop various motor skills.
Finally, the intellectual development of IVF is relatively normal. Research shows that there is no significant difference between the intelligence development of IVF and that of naturally pregnant infants. They can normally accept environmental stimuli and show adaptive learning ability.
Summary
The psychological characteristics of test tube babies after 28 days show obvious characteristics in four aspects: cognition, emotion, social interaction and development. They are sensitive to external stimuli, have short attention span, and have strong memory. In terms of emotion, they have strong attachment to their mother, great emotional fluctuations, and relatively weak emotional expression to the outside world. In terms of social interaction, they have a high demand for interpersonal communication, but their social skills are relatively poor. In terms of development, IVF babies have normal physical development, weak motor ability and relatively normal intellectual development. To sum up, there are some differences in psychological characteristics between test tube babies after 28 days and naturally pregnant babies, and they need proper care and training to promote their all-round development.