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CHYS 1F90 Lecture Notes - Synaptogenesis, Cortisol, Neurology

Child and Youth Studies
Course Code
Lauren Mc Namara

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Running head: CHYS 1F90 Assignment
Two spaces after period.
Child and Youth Studies
Dr. J. McNamara
Fall/Winter 2011
Lecture Overview
Suomi’s theory
Macaque research
Brain Development
Neural Pruning
Previous Research
Suomi uses Freud’s idea
What happens early affects adulthood
However, research is cloudy
Research with animals has permitted a more direct study of the relationship
Rhesus Macaques
Macaques shared 90% of our genes
Basic troop behaviour (Macaques share the same group mentality as people)
20% of Macaque Population
Highly reactive monkeys
Prolonged HPA activation
High cortisol levels
High stress
Put a plastic clown in the Macaque habitat. Most pat it, sniff it, and continue on their routines.
20% of the Macaques hurt themselves trying to leave the habitat. In nature, they die young, have
low reproduction levels, and eat last.
Unusually supportive moms
20% of macaque mothers exhibit very supportive care of their infants
Overly affectionate with their infants. When the clown is in the habitat, they would hold the infant,
and not let it escape, and show them the clown so the infant wouldn’t be scared.
Process of breeding with the intention to create offspring that share the traits of both parent
Understanding genetics
Increases the likelihood that a highly reactive monkey will be born
The Result
Highly Reactive Infant
Highly Nurturing Mom
Adoption: cross fostering. He puts a highly reactive infant with a highly nurturing Mom.
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