Approaches -> Biological

Question 1

Evolution

Answer 1

behaviour has adapted and changed over time through natural selection
profitable behaviours are selected in mates
advantageous behaviours will continue

Question 2

The Influence of Genetics

Answer 2

Heredity
physical or psychological.
twins concordance rate
behaviours could be a mix

Question 3

The CNS:

Answer 3

This comprises of the brain and spinal cord which act as the centre from which the individual is controlled

Question 4

The PNS:

Answer 4

This comprises of the somatic nervous system and autonomic nervous system.

Question 5

endocrine system

Answer 5

The endocrine system maintains levels of hormones in the blood that are released by glands. The most important gland is the pituitary gland which is located in the brain. This is sometimes called the master gland because it instructs the other glands in the body to secrete hormones when necessary.

Question 6

Neurotransmitters

Answer 6

Neurons communicate with each other by releasing neurotransmitters. Biological psychologists argue that neurotransmitter levels can affect the behaviour of an individual (e.g. low serotonin levels have been linked to depression).

Question 7

Hormones

Answer 7

Hormones are released as part of the endocrine system through glands. Biological psychologists argue that hormone levels in the system can affect the behaviour of an individual (e.g. high testosterone levels have been linked to aggressive behaviour).

Question 8

Strengths of the biological approach

Answer 8

Predisposition
Avoid situations
&
Scientific
replicable

Question 9

Weaknesses of the biological approach

Answer 9

Genetic basis for criminal behaviour
Genetic discrimination
&
Biologically reductionist
Different factors influence behaviour