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Biological approach to psychology

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Leigh McDermott

on 21 April 2015

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Transcript of Biological approach to psychology

Biological approach to psychology
This approach states that all our behvaiour comes from our biology
The Biological approach (P1)
This means that all behaviour can be explained by inheirtance
Behaviour can be explained by our genes (P1)
This means as humans we inherit behaviour from our parents, i.e. our genetics.
Behaviour comes from our genes (P1)
There are many biological perspective relevant to the study of psychology & behaviour, we are going to look at three aspects - hormones
- genes
- neurotransmitters
Key point
Addiction -
(M1) Could there be other explanations for these behaviours?
(M1) what overall term could be said to be responsible for the behaviours?
(M1)What else do you share 100% of with your parents?
Behaviour also comes from our hormones (P1)
Worked example:
Schizophrenia - is a psychotic disorder, this means, you can’t tell your own intense thoughts, ideas, perceptions and imaginings from reality.
M1 - could you say about your behaviour if you get any disorder through genes?
Mood swings
What substance is present more in males than females?

What is this substance responsible for responsible for?

Hint: Think physical/emotional differences
M1 - Overall how many explanations are responsible for behaviour according to the biological approach
Behaviour also comes from our neurotransmitters (P1)
Neurotransmitters are biochemical signals released in the brain.

Serotonin; has been linked to behaviours such as anxiety, aggression, depression & addictions to substances.
Dopamine - this is the one that makes you feel good!

E.g. when you drink alcohol, gamble, Sky dive - this chemical is flooding round your brain

It is this that makes you want to do the behaviour so has been linked to addiction
When men drink alcohol testorone rises x2
What behaviour can this lead to?
In heavy drinkers the level of oestrogen can increase
What physical differences can this lead to?
When women drink the testosterone level rises x4!!!
What can happen then?
The level of oestrogen then increase to compensate
What behaviour can then occur in women at the end of a night?
M1 - Evaluation
Consider these following points - you will be teaching each other them
1. Reductionist - one single simple explanation e.g.
2. Determinist - you inherit behaviour = behaviour
3. Nature or nurture? - what factors are/not responsible
4. Other explanations for some behaviour - share 100% of genes but 100% of environment
Evaluation method M1
1. There will be 4 evaluation experts
2. Each one will run an evaluation meeting
3. They will explain the evaluation points to you
4. They will nominate another person to lead the next group – 1 must stay behind
5. You will all cycle round to the next evaluation point
6. This will continue until you have all four points
How could changes in your brain affect your behaviour?
What are some of the symptoms of Alzheimers?
10% chance if a family member has schizophrenia
46% chance if both parents carry the gene
50% if identical twins
Biological Maturation
Arnold Gesell used the term maturation to describe the process of changes that take place during our lifespan
These may be physical changed from childhood to adulthood
These changes come about because of genes - they should happen in all people, at the same rate & not need the environment as an ifluence
They should happen in a sequence or in stages - i.e. maturing socially or developmentally.
Look at the stages that Piaget covered and summarize, with examples, how children mature biologically.
Natural selection
What are the key points of this theory?
What are the differences shown by the children in the video?
How does this link to maturation?
Can you link this idea to human behaviour?
In groups look at the articles and decide

How they are similar & how they are different

1. The language used - is it emotive?
2. The font style & size - why is this impritant?
3. The use of pictures & images
4. The use of colour
5. The content of the article
Assignment structure
Biological approach = magazine article
You need to decide what style you are writing in
Full transcript