Approaches Flashcards
What did Wilhelm Wundt believe?
All aspects of nature, including the human mind, could be studied scientifically eg controlled, objective
He promoted the experimental method
What did Wundt develop?
Introspection to study mental processes (eg memory, thinking) which lead to the introspection approach
Paved the way for later controlled research and study of mental processes by cognitive psychologists
What is introspection?
Process where a person gains knowledge about own mental and emotional states by observation of conscious thoughts and feelings in terms of intensity, quality and duration
It breaks down conscious awareness into basic structure ls of thoughts, feelings, images and sensations reflecting in these by showing an everyday object
Systematic reporting of experience of everyday object
Focus on objectivity
Empiricism
Belief all knowledge is derived from sensory experience, characterised by use of scientific methods
Introspection limitations
Introspection is subjective
Unreliable
Difficult to establish general principles
Should study observable to be scientific
Introspection not falsifiable
Based on individual interpretation
Cannot be falsified
Not scientific
scientific approach strengths
Relies on objective and systematic methods of observation
Scientific method
Scientific knowledge is self corrective
If not factual is disregarded or modified
Repetition of experiments mean hard to exist for long
Scientific approach limitation
Objective and controlled observations
Artificial situations
Tell little about real life environments
Learning approach: classical conditioning (Pavlov) beliefs
All behaviour is learned
Focus on observable behaviour
Learning approach: operant conditioning (Skinner) experiment
Rat accidentally press lever, given food pellet - hungry rats press (positive)
Food pellet stops- rats press few more times then abandons (extinction)
Unpleasant stimuli eg noise stopped by lever (negative)
Electric shock following press (punishment)
Learning approach strengths
Practical applications- treat phobias
Token economy- reward appropriate behaviours (psychiatric patients)
Effective treatment
Controlled environment
Minimise extraneous variables
Repeatable
Learning approach weaknesses
Deterministic
Thought no free will, by external factors
Unrealistic- more logical for impact of different things, including free will (soft determinism- environmental factors but choose to behave)
Animal research
Nonhuman
Humans have free will
(/ skinner- illusion, only external factors guiding)
SLT beliefs
Learning through observation and imitation of influential role models
SLT: identification
Connecting between a child (observer) and a role model (imitated), often based on perceived similarity
SLT: vicarious reinforcement
Learning though observing consequences of role model’s behaviour in terms of reward and punishment
Bandura’s mediational (mental) processes
- Attention (observed and attended to model)
- Retention (place in LTM to be retrieved)
- Production (think able to replicate)
- Motivation (want to imitate)
SLT: Bandura et al (Bobo doll) procedure
36 boys, 36 girls
3 groups consisting of 12 boys and girls
2 groups exposed to aggressive/non adult models, 1/2 with same sex model
Control: no model
Pts deliberately annoyed by not allowed to play with toys shown
Filmed, one way mirror
Non aggressive: assembled toys, ignored bobo
Aggressive: after 1 min attacked bobo (punched, sat, hit with mallet) sequence performed 3x over 9 mins with aggressive comments
SLT: Bandura et al (Bobo doll) findings
Aggressive model: more aggressive
Girls verbally aggressive
Observers more likely imitate same sex role model
Shows observation and imitation accounts for learning specific aggressive acts without reinforcement
SLT: Bandura et al (Bobo doll) limitations
Lab: lack ecological validity
Not same and genuine aggression directed at humans
May not act aggressively outside setting
No fear of punishment
Demand characteristics
Unfamiliar setting, adult role model
Thought violence expected so changed to meet aim
Low internal validity
Limited sample (3-6yrs)
Low generalisability for older
More cognition/ free will/ learned norms)
Low population validity
SLT: Bandura et al (Bobo doll) strength
Ethical
Short period observed
BUT unknown LT side effects
Maybe more aggressive not protection
SLT strengths
Led to effecting phobia treatments
Modelling- encourage learn more appropriate response by observing reaction
Benefited society
Real life evidence
Behaviours invove elements of SLT eg smoking addiction
Akers: probability of engaging in criminal behaviour increases when exposed to role models, identify, vicarious reinforcement
Valid explanation
SLT limitations
Oversimplisitc
Ignores other influences eg biological
Boys more aggressive hormonal factors, testosterone
Boys with XYY chromosomal abnormality
Complexity of behaviour- holistic approach needed
(Bandura’s AO3)
demand characteristics, ecological validity
Cog: computer model
Using computer analogies as a representation of human cognition
Information inputted through senses, encoded into memory, combined with previously stored information to complete task
Cog: information processing approach
Input - processing - output
Cog: what mental processes contribute to information processing
Attention (selecting important info)
Thinking (problem solving)
Storage (store in memory)
Retrieval
Cog: inference
Cannot study mental process’s directly
A conclusion reached based on evidence and reasoning
Cog: serial processing
One piece of info is processes at a time
Cog: schema
Cognitive framework that helps organise and interpret information in memory, based on experience
Cog: theoretical models: multistore model of memory
Sensory info from env (input)
Enters sensory register for short time
Attention= info transferred to STM
Rehearsal keeps info in STM
(If not rehearsed, decay or displaced by new info)
Rehearsal in stm transfers info to LTM
When needed retrieve
Cog: cognitive neuroscience
Scientific study of influence of brain structures on mental processes/ use of scanning techniques, post mortems to locate physical basis of cognitive processes
Cog: brain imaging techniques
Study living brain, detailed info about brain structures involved in different kinds of mental processing eg memory, attention, perception, problem solving
Cog: What does PET scan stand for?
Positron emission tomography
Cog: what does FMRI stand for
Functional magnetic resonance imaging
Cog: cognitive neuroscientists study
Neurotypical individuals and those with damage from trauma, disease or surgery
Brain injuries mapped by brain imaging techniques
Cognitive tests (memory) while scanning
Activity patterns compared to normal intact brain
Cog: what is double dissociation
Two patients show a ‘mirror image’ of impairment eg person one does 1 but not the other vice versa
HM: surgery for epilepsy, hippocampus removed, no LTM
KF: motorcycle accident, poor STM
Cog: limitations
Low ecological validity
Studies used tasks little common to everyday experience
Eg memory (random digit lists)
Low generalisability
Ignores emotion and motivation
Tells how cognitive processes take place, not why
Effect of emotion and motivation on ability to process info ignored
Over dependence on info analogies, irrelevant to computer not humans
Cog: strengths
Scientific
Experimental method, high controlled methods of collecting and evaluating data for inference
Conclusions about how the mind works based on more than common sense and introspection
Credible scientific basis
Practical applications
Contribution to understanding of causes of psych disorders
Eg depression characterised by negative thoughts an self, future, world
CBT effective treatment and quick
Bio: main assumptions
Behaviour is due to physical cause
Abnormal behaviours treated by biological methods: drugs
Neuroanatomy (brain structure) studied by brain imaging
Genetics studies by twin studies
Bio: genes
Consists of DNA: codes physical and physiological features
Inherited
Make up chromosomes