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Lecture 8

PSY100H1 Lecture Notes - Lecture 8: Intelligence Quotient, Neuroscience, Phonetics

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Michael Inzlicht

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Devlepmental Psychology--march 29-11
What is it?
Asks questions like What is human nature?
-Is human nature biologically developed or
People thought it was one or the other for the
last half century
You can't just predetermine where people will go
-THere are many perspectives on it--some
completely environmentally driven
-Genes expression is important, genetic dispostions
are activated by the environment
-So if someone had a specic genetic dispostion and
a clone was made of that person, depending on the
environment they are placed in, will determine
whether the clone will come out exactly the same or
di!erent , because the environment activates certain
-There is a relationship between nature, nurture--
being the biological nature and the environment they
are exposed to--intertwined
Babies--pure idea of development, not
'contaminated' by environement
Infants development is predictable, right down to the
day, they are not running around before they roll
over, go through development one stage at a time

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-There are many environemntal factors contributing/
inuence their rate of development , for e.g in
womb, alcohol syndrome, etc, or mom's emotional
state also e!ects babies, because it is hormonal and
biologically transferred through the body--e!ect
neurological development, also stress of mom e!ects
her baby, and mom's stress level e!ected by
nances, not safe neighbourhood vs safe
neighbourhood, her husband, her job, etc
-There is dynamic interwoven interplay between
neurobiology you are born with and how those genes
are turned on, which can be seen by development
and IQ test later on
-culture has a dynamic inuence on infant
development, such as infants sleeping on their
stomachs used to be normal, but after the pediatric
association said that infants who sleep on their
stomachs will be more prone to su!ocation, and
developed campaigns for babies to sleep on their
back but as a result can not learn to crawl as fast as
they had done previously --u are like a turtle on
your back, and if on their stomach, their muscles will
develop faster
-therefore, beliefs in culture results in many
unknown changes, like with the babies
-Mylienation of the brain of babies depends on how
much nutrition the baby recieves, enriched
environment, etc---biology depends on environment
-e.g abandoned children who grew up with no or
little parental inuence, and grew up not as

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functional kids, which can be seen in their facial
expression, they have fear, bang their heads, etc.
-Feral children, good example of how environment
shapes development, like dog children--walk like
dog, manipulate their body like dog, and tried to
civilize him, feed him cooked food, taught him
language, but they did made some progress but not
enough--those years of lack of human contact
e!cted how social he was, and he could not adapt to
'normal' culture
-Girl who was abused, and malnurished, so she
looked small, but was actually 16 years old, she was
immobilized, made to sit in a chair, which a!ected
her motor ability, she learned very little language,
and was not curious in her surroundings---she was
reabilitated who tried to integrate her, and she made
some progress learned some language, played some
sports, but was not developing like a normal child,
so her progress was limited, and eventually she was
-Being functionally human requires practise, like
learning second language- you can't just do it
through a textbook, but as a child, your brain hears
a pattern when you are a child, that's why you are
able to learn a language, it takes years of practise,
you have to hear the phonetics, etc
-Our connection to our social environment helps us
learn prejudices of our culture, our language,
movies, books, etc
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