3. Introduction: Confirm Developmental Status
• Developmental Psychology – branch of psychology that
studies how people change mentally, physically, and socially
throughout the lifespan
• For every age and stage of life, developmental psychology
seeks to explain how multiple factors such as biology,
environmental, social, culture, and behavior influence
human development through their lifespan.
• Along with studying common patterns of growth and
change, developmental psychologists look at ways in
which people differ in their development
5. Domains and stages of development
To help provide structure and clarity human development can be
organised into Domains and Stages of Life
Domains such as
• Physical/Biological
• Cognitive
• Psychosocial
Stages of life such as
• Pre Natal
• Infancy
• Early Childhood
• Middle Childhood
• Adolescence
• Younger Adulthood
• Adulthood
• Middle age
• Older Age
6. Stages of Life/Development
Pre Natal Infant
0-2 years
Early
Childhood
2-6 years
Middle
Childhood
6-10 years
Adolescent
10-20 years
Younger
Adult
20 -40
Years
Middle
Aged
40-65 Years
Older Aged
65 years
plus
Developmental psychology often conceptualize the lifespan in
terms of basic stages of development
Traditionally, the stages of the lifespan are defined by age, which
implies relatively sudden, age-related changes as we move from
one stage to the next
7. Stages of Life and Development
• Most of our physical, cognitive and psychosocial changes,
however, occur gradually.
• Individual difference will influence when, how and if
these changes occur.
8. Pre Natal
Risks at this developmental phase most often arise from exposure to environmental
factors such as Teratogans
Period of Zygote This is the first phase of pregnancy, lasting about 2 weeks, from
fertilization to implantation in the uterine wall.
Period of Embryo This is the second phase of pregnancy, lasting from implantation
until week 8. This phase is when the most changes occur and the preliminary
foundations for all body structures and organs is developed
Period of Fetus This is the final, longest phase of pregnancy & is deemed the “growth
& finishing phase”with rapid increases in size. By the end of the 3rd month, external
genitals form, along with fingernails, eyelids, & tooth buds. During the 2nd trimester
the fetus is large enough for the mother to feel movements, & brain weight increases
tenfold . In the 3rd trimester the fetus can feel pain and distinguish voices.
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9. Infancy
0-2years
• During this short span of 2 years, a child's growth is faster and more
complex than any other stage in their life
• This is one of the most important stages of human development.
• This also means that it is a vulnerable time
• Many physical milestones occur during this stages an infant gains
control over its body.
• Typically infants rely on others to meet most of their needs and they
learn to trust other people.
• At this stage a child is most at risk of Abuse
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10. Early Childhood
2-6 years
• The next stage of human development is childhood, during which
children start to explore and develop a sense of independence.
Eventually, children learn to make their own decisions and they discover
that their actions have consequences. As they learn and grow, they
develop a sense of self.
• The body growth slows down from the fast paced first 2 years.
• Between the ages of 2-6 children gain an average of 7 kilograms and
add 250mm in height. As these changes occur, posture and balance
improve along with motor coordination.
• The brain increases from 70% of its adult weight to 90%. The frontal lobe
continues to develop, which helps with planning and organization.
• The left hemisphere makes gains in language skills
• By age 4, the cerebral cortex has overproduced synapses, allowing
preschoolers to improve in skills such as perception, attention, memory,
physical coordination, language, imagination, and logical thinking.
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11. Middle Childhood
6-10 Years
• Middle childhood is a time when children improve on already established
schemes and capacities, leading to dramatic advances in problem solving
and academic learning.
• Children of this age are assigned new responsibilities and enter into
formal schooling.
• Brain development at this stage revolves
around specialization and lateralization, and the brain only grows 10%
during this time.
• There is a considerable increase in white matter, which is made of nerve
fibers in the frontal lobe that helps with impulse control, integration of
information, strategic thinking, and spacial abilities.
• Lateralization increases, which results in more complex and specific
abilities. Neurotransmitters and hormones are released at this age, which
may affect cognition and behavior.
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12. Adolescence
11-20 years
• Adolescence is the transition between childhood and
adulthood. During this stage, children experience full body
growth, acquire adult ways of thinking, attain greater
independence, develop more mature ways of relating to
peers, and begin to construct an identity. This is when a child
begins to discover who they are in terms of sexual,
vocational, moral, ethnic, religious, and other life values and
goals.
At this stage an adolescence is most at risk of developing
Mental Health issues.
Suicide is the leading cause of death for 15-19 year olds.
Video The teenage brain
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13. Early Adulthood
20-40 Years
• Early adulthood extends from age 18 to 40 and contains many
important milestones. This stage of life generally consists of leaving
home, completing education, beginning full-time work, attaining
economic independence, establishing a long-term intimate
relationship, and starting a family. This time in life is filled with
momentous decisions that set the foundation for success and
happiness in life.
• Body growth is slower than in earlier stages. Once the body reached
maximum capacity and efficiency, biological aging begins. This is
defined as genetically influenced declines in the functioning of
organs and systems. Biological aging does vary across body parts and
there are many individual differences based on factors such as
genetic makeup, lifestyle, living environment, and historical period.
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14. Middle Aged
• Middle adulthood begins around age 40 and ends at age 65. It is
marked by narrowing life options, a shrinking future as children leave
home, and career paths become more determined. There are wide
variations in attitudes and behaviors at this age, as everyone has had
their own life experiences. Besides heredity and biological aging, our
personal approach to passing years combines with family,
community, and cultural contexts affect the way we age.
• Physical development in midlife is a continuation of the gradual
changes that started in early adulthood but new wrinkles appear on
the face, grey hairs pop up, and a less youthful body shape becomes
evident
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15. Late Adulthood
65 years and over.
• Late adulthood spans from age 65 to the end of life.
• There is a balance of gains (more time, financial independence) and
declines ( body function, health, ).
• Life events include Retirement, Loss of Family, Empty nest, reduced
mobility)
• Chronological age is not a perfect indicator of functional age, which is
a person's actual competence and performance.
• People biologically age at different rates, which causes some people
to "seem young" for their age and others to "seem old".
At this stage risks are multiple at age 65: 1 in 10 will develop dementia
at age 85 this increases to 1 in 4.
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