development Flashcards
what is development
how we change and mature over a lifetime
what are the four stages of brain development
- prenatal (conception to birth)
- childhood (birth to 12)
- adolescence (13- 19)
- adulthood (20+)
prenatal stage of development
- conception to birth
- develop neural tube , cerebral cortex , neurons and simple synapses
childhood stage of development
- birth to age 12
- develop more neural connections
- more dense synapses in prefrontal cortex
- understand cause and effect as connections deepen
adolescence stage of development
- ages 13 - 19
- limbic system (emotions) first
- prefrontal cortex not fully developed - decision making
- highly emotional but not always make rational decisions
adulthood stage of development
- ages 20+
- fully matured pre frontal cortex
- neuro-degenerative diseases could develop
neurons
nerve cells that send messages all over the body
neural tube
forms the early brain and spinal cord in embryos
synapse
tiny gaps inbetween neurons
neural connections / pathways
connections in our brains formed based on our habits and behaviours
limbic system
part of the brain responsible for behavioral and emotional responses especially those needed for survival i.e - fight or flight , reproduction , feeding etc
pre frontal cortex
regulates our thoughts actions and emotions
neurodegenerative disease
when nerve cells in the brain lose function over time and ultimately die i.e Alzheimers , Huntingtons disease etc
how does piaget describe the stages of his theory of cognitive development
universal and invariant
piagets stages of cognitive development
- senesori motor (0-2)
- pre-operational (2-7)
- concrete operational (7-11)
- formal operational (11+)
sensori motor stage
- ages 0-2
- explore environment using senses
- develop motor movement
- develop object permenence at end of stage
pre operational
- ages 2-7
- develop language skills and mental representations of objects and events
- egocentric
- show animism
- lack of reversibility ( 3 mountain study)
object permanence
understanding that objects exist even when not visually present - sensory motor
egocentrism
when you can only see the world from your perspective- pre op
animism
attributing lifelike qualities to inanimate objects - pre - op
reversibility
Ability to think about things in reverse order state preop lack this
concrete operational stage
- 7-11
- ability to conserve
- ability to decentrate
- cannot imagine the world abstractly
- seriation
- linguistic humour
formal operational stage
- 11+
- capable of abstact thinking
conservation
understanding that changing the form of an object does not change the contents
decentration
the ability to pay attention to multiple attributes of an object or situation i.e looking at multiple letters to read a word
concentration
Centration is the tendency to focus on only one aspect of a situation at one time
Hypothetical thinking
the ability to think of abstract ideas understand and process information that isn’t directly observable or experienced
piaget theory limitations
- IGNORES ROLE OF NURTURE IN DEVELOPMENT
- all children go through the same stages based on maturation
- ignores role of environment - parents, teachers, peers etc.
- TOO REDUCTIONIST
- stating stages are universal and invariant is too simplistic
- in some countries children learn certain skills much earlier due to survival
- around half of adults actually feavh formal operational with many nit being capable of abstract thinking
Therefore cannot be universal
ARGUABLY UNDERESTIMATES AGE CHILDREN AND ACHIEVE DIFFERENT PARTS OF STAGES.
- for wxample a young baby may know an object is still there when hidden but may not have the strength or coordination to reach
what was the aim of piagets study
To see the stage of development when children are able to conserve.
piagets study design
- swiss children
- natural experiment
- cross sectional study