Biological Approach

Question 1

What is it?

Answer 1

Assumes behaviour is caused by physical factors
Genetics
CNS
Biochemistry

Question 2

Influence of Genes

Answer 2

Each individuals have 46 chromosomes containing thousands of genes
Code for the structure and functioning of the nervous system which influences behaviour
Except for twins everyone’s genetic makeup is unique

Question 3

Genotype
Phenotype

Answer 3

Genotype-an individuals genetic make up
Phenotype- a combined effect of an individuals genotype and the environment

Question 4

Concordance rate

Answer 4

rate which the same trait is present in both pair of twins

Question 5

Twin studies

Answer 5

Used to determine the involvement of genetic factors by comparing concordance rate of monozygotic and dizygotic twins

Question 6

Examples of Twin studies

Answer 6

Gottesman - Compared concordance rate of schizophrenia between pairs of twins
Maudsley Bipolar Twin study- investigates different aspects of thinking between pairs of twins with and without bipolar disorder

Question 7

Evolution and Behaviour

Answer 7

Psychological characteristics such as aggression was part of the evolutionary processes

Question 8

Naturally selected

Answer 8

Most beneficial mutation are passed down to descendants

Question 9

Sexually selection

Answer 9

Possess characteristics that attract opposite sex

Question 10

Evaluation

Answer 10

+ Lots of research studies
+ Lead to some very effective therapies
- Reductionist
- Deterministic