Biological Approach

Question 1

Biological approach is

Answer 1

The emphasis of physical processes in the body such as genetics and neural function

Question 2

Main assumptions

Answer 2

Everything psychological is at first biological
The mind lives in the brain

Question 3

Heritability

Answer 3

The amount of variance within a trait eg. The more a trait is influenced by genetics, the greater it’s heritability

Question 4

Identical and non identical twins

Answer 4

Monozygotic and dizygotic

Question 5

What do twin studies look at

Answer 5

Concordance rates (The % of which twins will have the same traits and characteristics)

Question 6

Concordance rates for MZ twins w OCD

Answer 6

68%

Question 7

What’s a genotype

Answer 7

The particular set of genes that a person possesses

Question 8

What’s a phenotype

Answer 8

The observable characteristics of an individual which are the consequences of the interactions of the genotype with the environment

Question 9

How do we use adoption studies with concordance rates

Answer 9

By comparing the traits of the adopted child with that of the biological parent

Question 10

OCD concordance adoption

Answer 10

Lewis
Patients w OCD found 37% of their parents had OCD meaning that there is a genetic vulnerability for the next generation to have OCD

Question 11

Bio approach pos

Answer 11

Real world applications
Low serotonin causing OCD
Educate treat (ISSRI’s) improve QoL
Usefull theory

Question 12

Bio approach neg

Answer 12

Twin concordance rates - environmental assumption
-assume that MZ and DZ are raised the same and share the same environment so are comparable however DZ are treated separately.
-concordance rates aren’t comparable and the difference between MZ and DZ may be exaggerated bc MZ may start acting similarly so have a higher concordance rate despite genetics
-reduces validity of concordance rates