Week 4 - Cognition, Development & Psychopathology

Question 1

MZ correlation of g

Answer 1

.85

Question 2

DZ correlation of g

Answer 2

.6

Question 3

first-degree correlation of g

Answer 3

.45

Question 4

C in g

Answer 4

.25

but disappears in adulthood

Question 5

heritability g

Answer 5

around 60%

goes up with age

Question 6

subscales of g and their heritability

Answer 6

heritability greater in verbal than in spatial

Question 7

heritability and quality of environment for humans

Answer 7

the better the environment the higher the heritability

Question 8

heritabiltiy and environment in rats

Answer 8

differences strongest in normal

Question 9

what do teacher’s really assess

Answer 9

SES and ethnicity

Question 10

assortative mating consequences

Answer 10

A goes down
C goes up
only for DZ

Question 11

sibling earnings gap

Answer 11

frist borns have higher IQ
social explanation: more attention
there is also a biological one

Question 12

missing heritabiliy

Answer 12

in GWAS
compared to twin data
the more complex a trait is the more is missing

Question 13

endophenotype

Answer 13

easily measurable trait

seen as subscale of e.g. working memory -> IQ

Question 14

head size

weight

Answer 14

first only C

then mostly A

Question 15

upper bound of heritability

Answer 15

MZ correlation

Question 16

historical theories on autism

Answer 16

refrigerator mom theory
slight brain damage
vaccinations

all wrong

Question 17

relative risk

Answer 17

not the same as concordance

Question 18

autism heritability

Answer 18

70-80%

Question 19

ASD genetic correlations

Answer 19

negative with well-being

Question 20

liability threshold

Answer 20

relatives of diagnosed person are often subclincal

Question 21

risks for autism

Answer 21

multiple fevers in pregnancy

childhood toxin exposure e. g. lead

Question 22

ADHD heritability

Answer 22

70%

Question 23

ADHD correlates

Answer 23

positive with body size and smoking

negative with cognition

Question 24

smoking heritability females

Answer 24

46%

Question 25

indirect influence in smoking

Answer 25

the genes

Question 26

direct influence in smoking

Answer 26

the cigarette

Question 27

therapy with highly heritable disorders

Answer 27

family intervention is better

Question 28

therapy for stable heritability

Answer 28

the earlier the better

Question 29

assortative mating effect

Answer 29

higher C
lower A
but no higher rMZ

Question 30

environment for rats

Answer 30

poor is damaging to bright and dull
enriched improved dulls
difference between dull and bright mostly in normal

Question 31

school achievement heritability

Answer 31

highly heritable and stable

Question 32

moderate cogntiive disability

Answer 32

between 35 and 50 IQ

Question 33

three classic small chromosomal deletions

Answer 33

Prader-Willi syndrome
Williams syndrome
Angelman syndrome

Question 34

families and cognitive impairment

Answer 34

mild is familial

severe not

Question 35

most common cognitive disability

Answer 35

fragile X syndrome

Question 36

Klinefelter syndrome

Answer 36

XXY

Question 37

stability of heritability of ADHD

Answer 37

remains stable

Question 38

heritability of anxiety disorder over life

Answer 38

decreases

Question 39

autism and chromosomes

Answer 39

probably not X linked

Question 40

Angelman syndrome

Answer 40

deletion in chromosome 15 from egg cell

Question 41

Prader-Willi syndrome

Answer 41

deletion in chromosome 15 from sperm cell