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PSY435H1 Study Guide - Midterm Guide: Solitude, Developmental Psychology, Biomonitoring

Course Code
Dan Dolderman
Study Guide

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October 9 – The Environment is You!
Child Development and the physical Environment
Behavioral Toxicology
oLead exposure lower IQ, deficits in rxn time, visual motor integration, attention, also
influence socioemotional development
oBody lead burden was related to students externalizing behaviors
oMercury – male infants manifested sensory motor difficulties in relation to maternal
mercury body burden, diminished IQ scores & language development
oPCBs – adverse cognitive developmental impacts (mothers who ate fish with this
Maternal intellectual stimulation during the early postnatal period partially mediated
some of the adverse impacts of PCB exposure on young children’s cognitive deficiencies
oPrenatal low-level lead effects are milder among higher SES kids (bt not for high-level)
oNoise – some studies found no correlation bw airport noise and reading
Males 12-14 mos in noisier homes had deficits in intellectual functioning; older infants
not affected
Children with greater exposure duration, independent of grade level and pre-existing
reading deficiencies suffer greater advantage
Relations found bw chronic noise exposure and poorer attention as measured by visual
search task
Noise affects adults who may in turn influence children’s cognitive development
Elevates blood pressure in children, & neuroendocrine stress hormones
Supress altruistic behaviour and accentuate aggression among adults primed by
violent stimuli or provocation
Recent study found no impact on overall physiological symptoms with the exception of
PS who worked under inescapable noise were less likely to perform successfully , also
less persistent on challenging tasks (adults)  found that children react the same to chronic
1 yr old males (not females) in noisier homes exhibited less mastery orientation in toy
play task
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