Prenatal Development Flashcards
Name some prenatal risks
- Genetic e.g. Downs syndrome
- Environmental e.g. Thalidomide- morning sickness drug in 1950s caused deformities
- alcohol
- Other risks include
- Poor maternal nutrition
- Infectious diseases- malaria etc
- Exposure to radiation
- Maternal stress
What did Glover 2010 find could be the implications of antenatal stress on the baby?
increased incidence in the offspring of :
Anxiety and Depression
Schizophrenia
Autism
Behavioural problems (e.g. conduct disorder)
Impaired cognitive development
Glover (2010)
What is perinatal?
• Perinatal - relating to the time, usually a number of weeks, immediately before and after birth.
What perinatal risks are there for premature babies?
- During birth
- they are at greater physical and neurological risk
- Immediate issues could include
- Respiratory (breathing) difficulties
- Low birth weight
What are the long term risks of being premature?
- Research indicates there may be longer term risks of
- Poorer motor abilities
- Cognitive impairments
- Social problems (e.g. shyness, isolation)
- Behavioural differences
What is psychosocial?
the interrelation of social factors and individual thought and behaviour.
What did Werner find in 1993?
- Research indicates that good care after birth and a stimulating environment can overcome perinatal risks (Werner, 1993)- followed 698 children on Hawaiian island from birth to adulthood- looked at educational achievement, mental health, physical health and criminality- some risks were overridden by happy and intact family, availability of substitute carers eg siblings and grandparents, absence of poverty
- But even a good psychosocial environment can not compensate for very low birth weight or premature birth
What are new borns four instinctive abilities?
- Orienting (attending to) social situations
- Displaying behaviours which encourage a social response
- They have an ability to learn
- They enjoy contingent responses and seek these
- Orienting (attending to) social situations
- Babies are attracted to attend to the auditory and visual stimulation that adults provide eg if a mother speaks or makes noises/coos to the baby
- Displaying behaviours which encourage a social response
- Newborns look and cry
- Smile randomly
- Cry if hungry or uncomfortable
- Caregivers respond to these signals
- Gradually the baby learns the social consequences of smiling and crying…… That they will receive attention
- They have an ability to learn
- Some things are learned before birth
- Can distinguish between voice of their mother and another woman 2 hours after birth (Querleu et al, 1984)
- Few hours after birth babies can learn temporal relationships (e.g. that one stimuli is regularly followed by another)
- Demonstrated by Blass et al (1994) with a forehead press and water drop- they know to move their head to the side to get water
- They enjoy contingent responses and seek these
- Stimulation that follows quickly from an action of their own (a ‘reply’ to their action)
- Demonstrated by the ‘contingency mobile’ by Watson and Ramey (1972) with 8 week-old infants
- Infants significantly increased the number of pillow (head) movements they made in the session
- Shows infants can learn a simple response to produce some stimulation.
Why are the four instinctive abilities important?
- These abilities of the infant assist them in getting into social interactions with adult caregivers
- Important for their survival and for learning
- The infant and caregiver ‘dance’ is important for development – we will learn more in lectures on Attachment and Perception