Stages Of Development

Question 1

Brain development in prenatal stage

Answer 1

16 days after fertilisation the embryo developes a neural tube, this later becomes the brain and spinal cord

6-20 weeks gestation cells are created. They follow a process called migration where they move to the correct location in the brain where they become neurons and begin to form the nervous system

2 month’s gestation the neural tube divides into brain and nerve cells. This forms the cerebral cortex which is divided into 4 sections frontal lobe, temporal lobe, parietal lobe and the occipital lobe

End of second trimester the baby’s nervous system has developed enough so they can react to loud noises outside the womb

When baby is born 100 billion neurons are formed

Question 2

Brain development
Childhood

Answer 2

5 moths the new synapse allow the baby to see in 3d

At 3 the density of the synapses in the pre frontal cortex is at its peak. This allows the child to use past experience to understand the present

They also understand cause and effect

They prune neural connections

Question 3

Brain development
Adolescence

Answer 3

They grey matter reaches max density

Lambic system is first to mature
Regulated emotions

Pre frontal cortex is last to develope

Frontal lobe cobtinues to develop during adolescence and reaches maturity at 16

Question 4

Stages of BD
Adulthood

Answer 4

25 pre frontal cortex finally matures
Makes rational decisions
Reduces impulsivity
Focus on long term consequences