Developmental Flashcards
Cortex
The outer covering of the brain. Responsible for thinking/cognition
Cerebellum
Looks like a miniature brain. Responsible for the co-ordination of movement e.g. balance
Thalamus
Deep inside the brain. Hub of information. Responsible for receiving and sending signals
Brain Stem
Connects the brain to the spinal cord. Carries motor and sensory nerves between brain and the rest if the body
What is nature (when it comes to brain development)?
Genetic influences and characteristics you inherit from your ancestors
What is nurture (when it comes to brain development)?
Refers to all influences other than genetics - external influences e.g. influences e.g. how you were raised, your experience and your environment in general
Examples of nurture factors that affect brain development
Smoking in pregnancy - smaller babies/smaller brains
High alcohol intake in pregnancy - possible fetal alcohol syndrome
German measles in pregnancy - can cause brain damage
Reading/singing whilst pregnant - babies recognise mother’s voice when born
Evidence that we are born with certain abilities (nature factors)
Babies can recognise faces at birth (compared to non faces, they look at faces for a longer amount of time)
Some studies show that identical twins have a similar IQ (intelligence), showing that they are born with this.
Who was Piaget?
Swiss Psychologist who carried out research in child development in the early 1900s
Changed the way we view children
What was Piaget’s basic theory?
Children’s cognitive development occurs in stages
Children think differently to adults
Children do not think logically
Children interact with the world to learn about the world
Adults can help support the children with their learning (by assisting - not doing everything for them)
What is cognitive development?
How a person’s thinking develops
What is a schema?
A mental structure containing the information we have about something e.g. what a dog is
What is assimilation?
A form of learning that takes places when we add new information to an existing schema (if the thing we come across is pretty similar to the schema we have) e.g. spaniels and labs look different but are still dogs
What is accommodation?
A form of learning that takes place when we come across something that does not fit into our existing schema, so we create an entirely new schema in order to cope e.g. even though a cat has 4 legs and a tail it does not fit into a ‘dog’ schema so a new ‘cat’ schema is made.
What is conservation?
Knowing that the amount of something stays the same even though its appearance may change
Piaget said that children can conserve at around 7 years of age
Describe McGarrigle and Donaldson’s (1974) study
Aim: to see if children can conserve earlier that Piaget thought
Procedure:
80 4-6 year old Edinburgh children
2 rows of 4 counters
Deliberate condition where experimenter messed one of the rows up and Accidental condition when a ‘naughty’ teddy accidentally messed the row of counters up
Children asked before and after in both conditions ‘“Is
there more in this row, this row or are they the same?”
Findings:
41% got it right in the deliberate condition
68% got it right in the accidental/naughty teddy condition
Older children could conserve more
Conclusions:
Piaget underestimated children’s abilities/his methods did not show how children could conserve. However the fact that more older children conserved shows Piaget was right that thinking changes as we get older
Evaluate Donaldson and McGarrigle’s study (sample)
One weakness of the study has sample bias
because all of the children who took part
were from the same area (Edinburgh). The
reason the older children did better than
the younger children might be due to
differences in their educational
background.
Evaluate Donaldson and McGarrigle’s study (individual differences)
Over 30% of children still failed to conserve when shown the naughty teddy which means that individual differences must be taken into account. When replicated by a different psychologist results were not as high as McGarrigle and Donaldson had found.
What is Egocentrism?
Not being able to see things from another person’s point of view
Sensorimotor stage 0-2 years
Children learn about the world through their senses (sensori-) and by doing things (motor) co-ordinated by the cerebellum. Child develops object permanence at
around 8 months old (knowing that object still exists even when it is out of sight).
Preoperational stage 2-7 years
Children are now more mobile but do not think in a consistently logical way. The
main feature of this stage is that children are egocentric. Children under 7 years
tend to view the world only from their own perspective (e.g. three mountain task).
Concrete operational stage 7-11 years
Children now perform better on tasks which tests for egocentrism i.e. they understand others’ perspectives. They also develop the ability to conserve (e.g.
liquid conservation experiment). Children still struggle to imagine objects or situations they cannot see.
Formal operational stage 11+ years
Children are able to focus on the form of an argument and not be distracted by its content. Children can now solve problems in systematic ways e.g. the pendulum
task by keeping the length of string the same whilst changing the weights rather than changing both at the same time.