Approaches Flashcards
Wilheim Wundt
-First perosn to call himself a ‘psychologist’.
-He said ‘ALL aspects of human nature including the human mind & behaviour can be studied scientifically.
-His method was called introspection: first systematic experimental attempt to study mind by breaking up conscious awareness into basic structures of thoughts, images & sensations.
What is a ‘scientific approach’?
Based on 2 approaches:
1. All behaviour is seen as being caused (determined).
2. If behaviour is determined, it should’ve be possible to predict how humans will behave in diff conditions (predictability).
Refers to use of investigative methods:
-objective: not influenced by personal feelings in considering & representing facts.
-systematic: done or acting according to a fixed plan (methodical).
-replicable: with ability to reproduce.
Introspection
-looking inwards.
Method of studying mind.
-trained his graduate researchers to make personal observations that were biased & based on experience.
E.g. reflective of their working mind.
-based around sensory perceptions & attention.
E.g. ppts would be exposed to standard stimulus & asked to report sensations.
structuralism: stimuli that Wundt & his Co workers experienced were always presented in the same order & same instructions issued to all ppts.
Evaluation of Introspection
:) systematic & well controlled.
:) excluded extraneous variables.
:) started foundation of psychology as a science.
:( not credible.
:( relies on someone else’s account.
:( bias.
:( unscientific today.
:( Griffiths (1994) asked gambles to think about whilst playing a fruit machine to see if their thought processes were more irrational. & they were.
Psych over time: 17-19th century
Psychology is a branch of the broader discipline of philosophy. If psych has a definition in this time, it is as experimental philosophy.
Psych over time: 1879
Wundt opens the 1st experimental psychology lab in Germany, & psych emerges as a distinct discipline in its own right.
Psych over time: 1900s
Freud emphasised influence of the unconscious mind on behaviour (the psychodynamic approach).
He also develops his person-cantered therapy psychoanalysis, & shows that physical problems can be explained in terms of conflicts within the mind.
Psych over time: 1913
John B. Watson writes psychology as the behaviourist views it & layer with B.F. Skinner, establishes the behaviourist approach.
The psychodynamic & behaviourist approaches dominate psychology for 1st half of the 20th century.
Psych over time: 1950s
Carl Rogers & Abraham Maslow develops the humanistic approach the so called ‘third force’ in psychology, rejecting the behaviourist & psychodynamic view that human behaviour is determined by outside factors.
Humanistic psychologists emphasise importance of self-determination & free will.
Psych over time: 1950s
The introduction of the digital computer gives psychologists a metaphor for the operations of the human mind.
The cognitive approach reintroduces the study of mental processes to psych but in a much more scientific way than Wundt’s earlier investigations.
Psych over time: 1960s
Albert Bandura proposes the social learning theory.
This approach draws attention to the role of cognitive factors in learning, providing a bridge, between the newly established cognitive approach & traditional behaviourism.
Psych over time: 1980s onwards
The biological approach begins to establish itself as the dominant scientific perspective in psychology.
This is due to advances in tech that increased understanding of the brain & biological processes.
Psych over time: Eve of 21st century
Towards the end of the last century, cognitive neurosciences emerges as a distinct discipline bringing together the cognitive & biological approaches.
Cognitive neurosciences investigated how biological structures influence mental states.
1900s Behaviourists
-By 20th century, value of introspection was questioned, notably by Watson who said the data was very subjective so it’s difficult to establish general laws.
-Skinner proposed that for psych to be scientific, the experiments should be observed objectively & measured.
1950s Cognitive approach
Digital revolution meant new gen of psychologists compared studying the mind to studying a computer & tested predictions about memory with experiments which insured the study was legitimate & disciplined.
1980s Biological approach
-Researchers have taken advantage of advances in tech to investigate psychological process.
E.g. use of sophisticated scanning techniques such as fMRI & EEG to study live activity in the brain.
-New methods like genetic testing have helped understand relationship between genes & behaviour.
Evaluation of Emergence of psychology as a science - Modern psychology
:) Scientific - psych has the same aims as natural sciences (describe, understand, predict & control behaviour).
Learning approaches use lab studies to investigate in a controlled & unbiased way.
Evaluation of Emergency of psychology as a science - Subjective data
:( Not all approaches use objective methods.
Humanistic approach uses individuals & subjective experiences.
Psychodynamic approach makes use of unrepresentative samples.
& Humans are active ppts & respond to demand characteristics.
Therefore, a scientific approach may not always be possible.
Focus on the environment
Learning approach states that the environment shapes our behaviour and we are born “tabula rasa” (clean slate).
Not interested in biological explanations.
Focus on scientific methods
Learning approach says behaviour should be studied in a scientific way by isolating & studying specific actions.
Strong focus on observable events.
What do learning approaches say we learn through?
-Imitation: social learning theory.
-Consequences for actions: operant conditioning.
-Association: classical conditioning.
How does Classical conditioning work?
-association
-passive
-Occurs when a neutral stimulus which wouldn’t normal cause a response is associated with an unconditioned stimulus whcih naturally cause a reflex. -This is called an unconditioned response.
-The NS is associated with the UCS so it causes the UCR to occur even when presented with the NS only.
-The NS is now a conditioned stimulus & it causes a conditioned response.
Classical conditioning - Pavlov’s dogs
Pavlov showed how dogs could be conditioned to salivate to the sound of a bell if the sound was repeatedly presented at the same time as they were given the food.
They learnt to associate the sound of the bell (NS) with the food (UCS) & produce salivation every time they were presented with the sound.
Thus, this shows how NS can created a conditioned response through association.
Operant conditioning
Skinner suggested learning is an active process whereby humans & animals operate on the environment.
Behaviour is shaped by consequences.
Reinforcement
A consequence of behaviour that increases the likelihood of that behaviour being repeated in the future.
Positive reinforcement: receiving a reward when a certain behaviour is performed.
E.g. green stamp for answering a question.
Negative reinforcement: occurs when you remove something unpleasant by performing a behaviour.
E.g. avoiding annoying sound by not wearing a seatbelt.
Punishment
A consequence of behaviour that decreases the likelihood of that behaviour being repeated in the future.
Positive punishment: receiving an unpleasant consequence after performing a behaviour.
E.g. detention for not doing homework.
Negative punishment: removal of something pleasant after a behaviour.
E.g. confiscation of phone.
Skinner’s rats
-Designed cages called Skinner’s boxes where everytime a rat activated a lever, they were rewarded with food. The rat overtime learnt this. (PR)
-Rat would be electric shocked and when he pushed the lever, the uncomfortableness would end. (NR)
Determinism
Idea that people are controlled & their behaviour is shaped by internal & external factors. Most psychologists lean towards this idea.
environmental determinism: belief that behaviour is caused by features of the environment (such as systems of reward & punishment) that we cannot control.
Limitation of Behaviourist approach - Environmental determinism
Sees all behaviour as conditioned by past conditioning experiences.
Ignored internal factors and assumed that external factors are the cause of everything & assumes do not have free will.
Skinner himself said that free will is an illusion.
Ignores influence of conscious decision making processes in behaviour (cognitive approach).
Strength of the Behaviourist approach: Well-controlled research
Behaviourists focussed on measurement of observable behaviour within highly controlled lab settings.
Removed extraneous variables and effectively established cause & effect.
(Skinner & reinforcement).
Animals do not have demand characteristics & weren’t exposed to environment.
Improves internal validity.
Suggests behaviourists have scientific credibility.
Counter: ignores important influence of learning - human thought & private mental processes. Too oversimplified.
Limitation of the Behaviourist approach: Ethical issues
Skinners rats were bred in captivity and purposely kept underweight so that they would be hungry & were kept in small, captive, harsh spaces.
Violation of animal ethical guidelines.
Strength of Behaviourist approach: Real-world application
Operant conditioning is the basis of token economy systems that have been used successfully in i situations (prisons & psych wards).
Work by rewarding appropriate behaviour with tokens (secondary reinforces) that can be exchanged for privileges. (primary reward)
Increases the value of behaviourist approach as it has widespread application.
Social learning theory (SLT): The basics
-Process of how we learn through observation & imitation of role models.
-Not all behaviour is learnt through conditioning.
-Mix of behaviourist & cognitive approach.
SLT: Stages of Observational learning
- Modelling: RM models behaviour.
- Identification: observer must identify with RM & recognise it’s someone they wish to be like.
- Observation: observer notices behaviour & notes.
- Imitation: observer tries behaviour themselves (usually anticipating reward.
SLT: Vicarious reinforcement
Not ALL behaviour is imitated, depends on how behaviour is enforced.
-RM behaviour punished: less likely to imitate. vicarious punishment
-RM behaviour rewarded: more likely to imitate. vicarious rewards
Thus, observer learns behaviour & consequences for behaviour.
SLT: Meditational processes
Bandura said SLT involves conditions and making u formed decisions & it is a voluntary process.
A -attention (noting behaviour)
R -retention (remembering it)
R -reproduction (performing ability)
M -motivation (rewarded/punished)
SLT: Identification
-People (esp children) are likely to imitate who they identify with (gender,age,ethnicity).
-A person becomes a RM if they’re seen to possess similar characteristics as the person & are attractive or have a high status.
-Don’t have to be physically present.
Study 1: Bandura, Ross & Ross (1961) - Imitating RMs
Aim:
to find out if children would show more aggressive behaviour if exposed to an aggressive role model & less aggressive behaviour if exposed to non aggressive. Also to see if sex of RM & child made difference.
Procedure:
-Used equal no. of boys & girls (36) & measured how aggressive they were on 5 point claw by nursery teachers to put in groups.
-Children playing in rooms where (1) aggressive model comes in & pushes/punches/swears at bobo doll & hits with mallet, (2) non-aggressive model played quietly alongside kids.
-Children toys were taken away.
Results:
-G1 kids were aggressive with bobo doll in same way adult RM Ws.
-In G2, & control group, around 70% children had score of 0 for aggression.
-Male RM had bigger influence than female.
Conclusions:
-Behaviour can be learned by imitation even without reinforcement.
-Male RM more influential - cultural expectations.
-Verbal aggression was sex-typed, girls imitated women & boys imitated men. Imitate who they identify with.
Study 2: Bandura, Ross & Ross (1963a) - Replication, using filmed RMs
Aim:
-Find out if kids become more aggressive when exposed to aggressive RM in film/less realistic cartoon than live.
-Test popular idea that filmed aggressions is cathartic. (Makes calm).
Procedure:
-Same as original with extra condition of where children watched film where female adult model was dressed as cartoon cat following script.
Results:
-Conteol group carried out half as much aggression.
-No significant difference with live/filmed/cartoon models.
Conclusions:
-Concluded children imitate filmed and live aggression the same way.
-Watching filmed violence is not cathartic & encourages more aggression.