Approaches (Paper 2) Flashcards
Wilhelm Wundt 1879
Wundt opened the first psychology lab in Germany and as a result psychology became a distinct discipline.
Introspection
Introspection is used in society to look into peoples minds and thoughts and feelings. This helps someone like a therapist to look into a patients mental state. It could be done through a interview but the drawback of introspection is that people may answer with socially desirable answers.
JB Watson 1915
He founded the behaviourist approach
Behaviourist approach
The behaviourist approach focuses on how behaviour is a product of our learning, experience and environment. We are born as ‘blank states’ and all we can do is learn. He disregarded things like introspection as if cannot be observed whereas behaviour can be observed.
Classical conditioning
This is learning by association and refers to the conditioning of reflexes and involves associating a new stimulus with an innate bodily reflex. Classical conditioning involves pairing a response naturally caused by one stimulus with another, previously neutral stimulus.
Pavlov’s dogs
Food: unconditioned stimulus (UCS)
Salivation: unconditioned Response (UCR)
Dog naturally salivates at food Bell: Neutral stimulus (NS)
Bell: Neutral stimulus (NS)
Food: unconditioned stimulus (UCS)
Salivation: unconditioned Response (UCR)
Bell: Conditioned stimulus (CS)
Salivation: Conditioned response (CR)
Operant conditioning
Operant conditioning is concerned with the use of consequences, such as gaining rewards or receiving punishments, in order to modify and shape behaviour. Skinner, like Pavlov, tested this learning process on animals
Skinners Box
A hungry rat was placed in a Skinner box. The box contained a lever in the side and as the rat moved about the box it would accidentally knock the lever. Immediately it did so a food pellet would drop into a container next to the lever. The rats quickly learned to go straight to the lever after a few times of being put in the box.
Strengths of behaviourism
-Very scientific with its experimental methodology -Theories are testable and supported by rigorous experimental research
-Replicable
-Behaviourist explanations can be applied to the real world to explain everyday behaviour such as phobias and has produced many practical applications such as treatments which have been found to be effective. For example systematic desensitisation which is based on classical conditioning is effective in the treatment of phobias.
Limitations of behaviourism
-Ethical issues: not all research meets ethical guidelines
-Deterministic: It is deterministic as it sees all behaviours determined by previous conditioning and does not recognise free will
-Much data has been obtained from species such as rats, dogs and pigeons but the relevance of these findings to human behaviour is dubious
Cognitive approach
-Uses experimental research methods to study IMP such as attention, memory and decision making
-Assumes mind actively processes information from our senses
-Between stimulus and response there is a series of complex processes which can be studied scientifically
Schema
Schemas are the mental representation of experience and knowledge and understanding. They help us make predictions on what will happen based on passed experiences.
Theoretical and computer models
Theoretical models are diagrams which represent the steps involved In internal mental processes e.g. the information processing model. Computer models are software simulations of internal mental processes that are created in collaboration with computer scientists.
Biological approach
The biological approach attempts to explain behaviour in terms of different biological processes such as genes, hormones and neurotransmitters. According to this approach the brain and mind are identical and brain physiology and biochemical imbalances affect behaviour. They also believe behaviour can be inherited.
Genes
They make up chromosomes and consists of DNA. Genes are inherited and this is linked to behaviour and psychology as metal disorders can be inherited.
Biological structure
An arrangement or organisation of parts to form and organ or living thing
Neurochemistry
Relates to chemicals in the brain that regulate psychological functioning
Genotype
Actual genetic make up of a person
Phenotype
The way genes are expressed through physical, behavioural and psychological characteristics
Strengths of biological approach
-It is a scientific approach. This suggests that we can find cause and effect of biology on behaviour.
-Use of scientific method is highly controlled increasing reliability and validity of findings.
-Impact of biology on behaviour can lead to treatment e.g. drugs to counteract neurotransmitter imbalance e.g. SSRIs to treat OCD and depression.
-Scientific measurements are objective as it can be performed by machines which have no vested interest in the outcome e.g. PET scans, EEGs etc. Use of complex machinery allows accurate and precise measurements
Weaknesses of biological approach
- It is a deterministic approach as it believes that we are determined by our physiological, genetic or evolutionary make-up. Therefore stating that there is no free will.
- This approach is reductionist by stating that all human behaviour can be explained through a single biological process
- We are therefore not unique as individuals. It is also dehumanising to present humans as ‘biological machines’.
- Dangers of looking for a biological cause of all behaviour led to problems e.g. searching for the ‘criminal gene’.
- Biological approach ignores the role of the environment etc. it should be used in combination which is known as the biosocial approach.
- It is very difficult to separate the effects of nature (genes) from nurture (the environment)
- Laboratory experiments can lack ecological validity