Upgrade to remove ads
The Biological approach
Terms in this set (18)
The Biological approch in Psychology
This is concerned with how our physical structures, especially our genes and central nervous system influence the way we think and behave.
Seeks to explain behaviour on the basis of anatomy, physiology and inheritance. Biological Psychology includes the study of behaviour genetics.
The basic human assumptions of biological approach:
- Human behaviour is strongly influenced by our genetic make up and genetic inheritance.
- The CNS especially the brain is essential for thought and behaviour to take place.
- The role of chemical processes and the effect of imbalance brain and mind are the same.
- The brain and mind are the same.
- Humans have evolved biologically.
- The biological approach usually involves highly scientific and technological approaches to research
This is the study of the genetic make-up of organisisms and how genes influence physical and behavioural characteristics.
This is the traits, characteristics and behavioural tendencies that are inherited.
The genotype of an actual person if thier genetic make-up. This is normaly 23 chromosomes.
This is the actual expression of the personal genetic make up. For example physical appearance.
The effect genes have on our behaviour ie is intelligence inherited.
This allowed scientists to research on animals: Modify genetic aspects to investigate behaviour. Studying animals means animals can be compared to humans. Which means we can learn about out own behaviour.
This is a method which allows the choosing of male and female animals for a specific trait or characteristic they have for example aggression.
Bock and Goode (1996)
Found when male mice were reared alone, they attacked other male mice when they first met. The mice were not taught to be aggressive they just showed that behaviour. This study implies a natural, genetic tendancy towards biological aggresion. This means environmental factors were taken away.
How genes can affect behaviour
*Genes are codes for proteins.
Some proteins that affect behaviour are:
- Hormones (testosterone, oestrogen, adrenaline)
- Neurotransmitters and receptors
- Enzymes which affect the functioning of the nervous system as well as other bodily systems
Genes and hormones can affect behaviour are:
- ADHD: Attension deficit and hyperactivity disorder.
- Alcohol sensitivity
- Intelligence (Contraversial)
- This is a specialised nerve cell which communicated either with other neurons.
- Some neurons are extremely small and others are more than a metre long.
Central nervous system
- Is made up of the brain and the spinal cord.
- The brain has 3 major parts: The brain stem, The cerebellum and the cerebral hemispheres.
- The brain stem controls basic functions such as breathing
The cerebral hemispheres perform higher functions such as vision and memory.
These hemispheres are what distinguish humans from other animals.
In the Pheripheral nervous system
- The somatic system controls skeletal muscles and recieves information from sensory receptors such as the eyes.
- The automatic nervous system controls essential life-maintaining processes.
The autonomic nervous system is made up 2 substems:
- Symathetic nervous system
- Parasympathetic nervous system
This secretes hormones into the body through a number of different endocrine glands located in different parts of the body.
The most important endocrine gland: Pituitary gland
This is location in the middle of the brain.
YOU MIGHT ALSO LIKE...
Psychology Unit Test 1&3
Chapter 3 Quiz
OTHER SETS BY THIS CREATOR
Key approaches in Psychology
SWOT/ Sources of finance
Social learning theory
THIS SET IS OFTEN IN FOLDERS WITH...
Statistical Appendix Psychology
Psych Review 2
Psych Review Quiz 3