Approaches Flashcards
Origins of Psychology
In 1873 Wilhelm Wundt published the first book on psychology ‘Principles of Physiological Psychology’ to establish the subject as an independent branch of science. In 1879 opened the first psychology laboratory in Leipzig- the Institute of Experimental Psychology
Behavioural approach (5 things)
Watson and Rayner (1920)- Little Albert learned fear.
When born our mind is a blank slate
Behaviour is a result of stimulus
All behaviour is learnt from the environment
Little difference between learning in humans and in other animals
Stimulus
Anything, internal or external, that brings about a response
Response
Any reaction in the presence of the stimulus
Reinforcement
The process by which a response is strengthened. Positive and negative reinforcement makes the behaviour more likely to happen again in the future
Operant conditioning
Skinner (1938) rats showed operant conditioning, learning through consequence. Applied for treatment of behaviour.
Positive: increase likelihood of response since it involves a reward for the behaviour
Negative: increases likelihood of response since it involves the removal of unpleasant consequences
Classical conditioning
Pavlov’s dogs. Involves pairing a response naturally caused by one stimulus with another, previously neutral stimulus. This is learning by association and refers to the conditioning of reflexes and involves associating a new stimulus with an innate bodily reflex.
Punishment
The consequence is receiving something unpleasant which decreases the probability of the behaviour being repeated
Social Learning Theory
A way of explaining behaviour that includes both direct and indirect reinforcement, combining learning theory with the role of cognitive factors.
Bandura (Bobo doll)-learning occurs from observing others (models).
Four conditions for social learning/ Mediational Processes
Attention- the extent to which we notice certain behaviours
Retention- remembrance of observation
Motor reproduction- replicate behaviour shown by model
Motivation- seek to demonstrate behaviour observed
Types of Models
Live models- physically present in our environment
Symbolic models- people in films, books, cartoons
Symbolic Modelling is considered to have a greater effect on cultures where media is widely available
Vicarious reinforcement
Seeing others being rewarded for a behaviour influences someone in whether they choose to imitate the behaviour
Akers(1998)
Suggested that the probability of someone engaging in criminal activity increases when they are exposed to models who commit crime and identify with them and develop the expectation of positive consequence of criminal behaviour
Reductionist approach
Very basic cause and effect mechanisms
Behaviour is a result of learning
Ignored biological explanations
Assumptions of the cognitive approach
Our mental systems have limited capacity- amount of info processed depends on how demanding a task is.
Control mechanisms oversees all mental processes- require more processing power for new tasks, less for other things
There is a two way flow of information- take in info from the world, process it, react to it, use own knowledge and understanding for our own perception of the world
Schema
A ‘package’ of information and ideas developed through experience. Helps you to organise and interpret information and experiences. It can affect behaviour. You need to get new information into your schema in order to improve it.
Role schemas
These are ideas about the behaviour which is expected from someone in a certain role, setting or situation
Event schemas
These contain information about what happens in a situation. Also called scripts
Self-schemas
Contain information about ourselves based on physical characteristics and personality, as well as beliefs and values. These can affect how you act
Problem of schemas
Can stop people from learning new information
- prejudice and stereotypes can be an outcome of schemas
- schema which hold expectations or beliefs about a certain subgroup of people may bias the way we process incoming information.
Can lead to perception errors and unhelpful behaviour
Methods involved in brain scanning
Lesion studies- see if brain damage changes behaviour
Electrophysiology- using electric and magnetic fields to measure brain activity and brain waves
Neuroimaging- pinpointing areas of the brain which are active when a task is performed
Assumptions of the Biological Approach
Everything psychological is at first biological
Biological structures and processes within body impacts behaviour
Physiological cause may be genetically/environmentally altered
The mind lives in the brain
Monozygotic
One zygote, these twins are formed when a fertilised cell splits into two and forms two separate embryos
Dizygotic
Two zygotes, these twins are formed when two separate eggs both become fertilised by different sperm cells
Concordance rates
The extent to which a pair of twins share similar traits or characteristics
Genotype and Phenotype
Genotype- actual genes which determine potential for characteristics
Phenotype- observable characteristics of an individual
5 Brain Scans
PET Scans- active patterns during tasks
CAT Scans- detects damage
MRI- detects small tumours
fMRI- structural and functional info
SQUID- produce accurate images of brain activity