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What is the dual process model of cognition?
Our behaviour is guided by two systems:
Controlled processing
Automatic processing
Describe controlled processes
Deliberate and intentional behaviours
Potentially limited
Goal-dependent
Requires awareness of behaviour
Dependent on motivations
Self-determination theory
Internal vs external motives
Describe automatic processes
Uncontrollable or unconscious processes
e.g gut reactions, knee jerk responses
Influenced by the environment, priming, attitudes
Gilbert and Hixon (1991)
Had people watch a video of experimenters doing something
One was asian american one was white
When ppt are distracted they couldn’t engage in controlled processing
!!
What does ‘cognitive misers’ refer to?
Tendency to conserve energy by using shortcuts to inform choices
How are ‘cognitive misers’ facilitated?
Use of automatic processing
Pre-existing attitudes
Why may ‘cognitive misers’ occur?
Because controlled processes require attention we may not always have
What is an attitude?
A cognitive representation that summarises evaluation of an attitude object
What is an attitude object?
The self
Other people
Things
Actions
Events
Ideas
… anything
What 2 characteristics do attitudes have?
Direction (positive or negative)
Intensity
What is the function of attitudes?
Help people navigate the environment
Provide shortcuts to guide behaviour
Reduce cognitive effort needed to make decisions
Automatic processing
What are the 3 sources of attitudes?
We build up information about an attitude object through:
Affective information
Behavioural information
Cognitive information
What is affective information?
Feelings and emotions about the object
Feelings
What is behavioural information?
Information about past, present, or future interactions with the object
Behaviours
What is cognitive information?
Facts and beliefs about the object
Thoughts
What does self-perception theory suggest?
Observing our own actions as a basis for our attitudes
Repeated behaviours with positive outcomes = ? valence
Positive
Behaviours with negative consequences = ? valence
Negative
What happens if we engage in behaviours which contradict attitudes?
May trigger cognitive dissonance to resolve discrepancy
How can cognitive information be contaminated?
Biased media coverage
Withheld information during education
What does the Associative-Propositional Evaluation (APE) model suggest about attitude formation?
Our attitudes develop through:
Associative learning
Propositional learning
What model does associative learning rely on?
Semantic Network Model
What does the Semantic Network Model suggest?
Mental links form between concepts based on shared properties
Nearby concepts also activated → spreading activation
According to the Semantic Network Model:
Shorter path between concepts = ?
Stronger association in memory
How does associative learning explain the semantic network model?
When two stimuli are frequently paired together
Creates a semantic link in memory
‘Neurons that fire together, wire together’
Classical conditioning
How does associative learning explain attitudes?
The co-occurrence of stimuli can influence attitudes
e.g flowers → pleasantness
Associative learning via media
e.g Black Americans → violence
What is priming?
Activated information which informs automatic processing (conscious or unconscious)
How does priming influence attitudes and decisions?
Concepts closely linked to ‘prime’ can impact decisions
e.g semantic network model, spreading activation
How does priming work?
What is propositional learning?
Mental links are elaborated upon, requires controlled processes
Create causal relations between associations
In an attempt to validate associations
Associative vs propositional learning
Associative = CREATES simple links in memory
Co-activation of concepts
Can be rejected (if you have the ability to use controlled processes)
e.g spiders → disgust
Propositional = EXPLAINS simple links in memory
Validation and explanation of associations
Associations further strengthened (if validated, requires controlled processes)
e.g spiders are dangerous and should be avoided
How may associative and propositional learning conflict?
Associative information can be activated regardless of whether you believe the response as appropriate
Propositional information may override if the response is inconsistent and you have the motivation (and resources)
How can associative processing use automatic processing?
Triggered automatically via exposure to primes the the environment
How can associative processing use controlled processing?
Purposefully triggered via controlled processing
How can propositional processing use automatic processing?
Generating propositional information requires controlled processes to reflect on associations
How can propositional processing use controlled processing?
Once propositional information is generated, they are stored in memory similar to associative information
Triggered via priming/spreading activation
How can the APE model be used to reject stereotypes?
Propositional processes invalidate associative information such as ‘Black Americans are violent’
Instead suggesting ‘Treating individuals belonging to stigmatised groups negatively is wrong’
What external influences impact associative information?
Personal experience
Daily interactions/habits
Observation of others
Media exposure
What external influences impact propositional information?
Self-generation via reflecting on our behaviour
Can be learned from others, media, and education
How does confirmation bias influence APE?
We like to maintain stable attitudes
So we discount the validity of propositional information which contradicts our attitudes
e.g during COVID individuals sought information which supported their pre-existing beliefs about vaccine effectiveness
How can attitudes be measured?
Self-report on attitude scales
Observation of behaviour
Physiological measures (e.g EEG, heart rate, skin conductance)
Reaction time measures
Implicit Association Test
What are explicit attitudes? Automatic or controlled processing? Automatic or propositional reasoning?
Typically reflect behaviour when using controlled processes
Capture propositional reasoning
Validate or reject associative processes with social norms
What are implicit attitudes? Automatic or controlled processing? Automatic or propositional reasoning?
Typically reflect behaviour when using automatic processes (not always)
Capture ‘gut’ reactions driven by activated associative and propositional information stored in memory
Are explicit or implicit measures more accurate? Why?
Explicit measures (self-report) are influenced by social desirability
But implicit measures aren’t necessarily more accurate
Each measure taps into different kinds of information
Likely predict unique types of behaviour
What is the Implicit Association Test (IAT)?
Common assessment of attitudes
Captures associations in memory
Assumption these are automatic
What does the IAT measure?
The strength of automatic associations between concepts
e.g flower (attitude object) = pleasant (evaluation)
vs insect (attitude object) = unpleasant (evaluation)
The ease of responding to pairings of two concepts measures the association between them
How do we respond to concepts closely associated in memory?
Easy to respond quickly and correctly when categorising
Leads to faster responses to these pairings
How do we respond to concepts that are NOT associated in memory?
Difficult to respond quickly and correctly when categorising
Leads to slower responses to these pairings
What is the D-score?
Measure of bias from IAT data
Strength of associations in memory
What does a positive D-score value indicate?
Congruent bias
e.g white = good, black = bad
Does a positive D-score mean someone is racist or sexist?
They may still have a positive attitude toward other social groups
This just may not be as positive as attitudes towards their own social groups
What does a negative D-score value indicate?
Incongruent bias
e.g black = good, white = bad
How is the D-score calculated?
Estimated by subtracting reaction times (RTs) between congruent and incongruent pairings, divided by SD of RTs
What are some issues with the IAT?
Makes assumptions about groups
Forces categorisation
May prime participants with stereotypes, rather than assess them
Some targets may not have appropriate comparisons
e.g alcohol vs water?
Participants can ‘fake’ IAT performance (De Houwer et al, 2007)
What does a faster RT on the IAT indicate?
Stronger associations in memory
What does a slower RT on the IAT indicate?
Weaker or conflicting associations
What is an alternative implicit measure?
Approach avoidance task (AAT)
How is liking of an attitude object linked to proximity?
If we like something, we tend to place it closer towards us
If we like someone, we tend to sit nearer to the person
What does the approach avoidance task (AAT) assess?
Innate impulses to be close to things we like
What component of attitudes (ABC) does the AAT capture?
Behavioural
What response do pleasant stimuli produce?
Approach
What response do pleasant stimuli produce?
Avoidance
What action is an approach response associated with?
Pulling objects closer
What action is an avoidance response associated with?
Pushing objects away
Describe Rinck & Becker’s (2007) study using the AAT
Participants told to push or pull joystick in response to stimulus
Avoidance = push joystick away
Approach = pull joystick towards them
Participants first sort neutral blocks to train participants
Landscape block = push away
Portrait block = pull towards them
Then the neutral blocks are replaced with emotional vs neutral stimuli
e.g alcohol, cigarettes, water, guitar
What did Rinck & Becker’s (2007) study using the AAT find?
If participants have a positive attitude towards an object they accidentally pull rewarding stimuli towards them when they are meant to push it away based on the orientation of the image
Quicker to pull joystick towards them (and slower to push it away) when sorting rewarding stimuli
!
Strengths and weaknesses of EEG
Good temporal resolution
Poor spatial resolution
Why does EEG have poor spatial resolution?
Shows instant neural activity
But we have no idea where it is coming from
What does an EEG measure?
Most EEG data is noise
Combined electrical activity from many neurons
Summations of electrical activity following many action potentials
Measured from the surface of the cortex (scalp) using electrodes
Detects changes in emotions, motivation, or arousal
How is negative voltage detected at the scalp during EEG?
Excitatory potentials cause an influx of positively charged ions into the neuron
Causing negative voltage to be detected at the scalp
How is positive voltage detected at the scalp during EEG?
After action potential, the neuron depolarises
Releases positive ions
Causing a positive voltage to be detected
What kind of neurons make up the majority of the EEG signal?
Pyramidal neurons
What are pyramidal neurons? How are they arranged?
The major projection neurons in the cortex
Uniformly orientated with dendrites perpendicular to the surface
How is EEG data (neural activity) measured?
Hertz (Hz)
The greater Hz = ?
The more frequency of ‘events’
What are the 5 types of EEG frequencies?
Delta
Theta
Alpha
Beta
Gamma
Describe delta waves
0.5-4 Hz
Very slow wave
Present during dreamle
Describe theta waves
4-8 Hz
Slow wave
Present during ‘dream’ sleep
Associated with learning/attention
Describe alpha waves
8-12 Hz
Relaxed, but awake (brain at rest)
Used to determine what part of the brain is active
More alpha waves = ?
That part of the brain is NOT being used
Less alpha waves = ?
That part of the brain IS being used
Describe beta waves
13-30 Hz
Fast waves
Represent directed attention and mental engagement
The ‘thinking’ wave
Higher frequency of beta waves = ?
More complex thought
What Hz are gamma waves?
30-100 Hz
What the the Fast Fourier Transform (FFT)?
Used to analyse EEG data
Converts time-domain signals to frequency-domain signals
Allows researchers to identify patterns in brain activity
What is frontal alpha asymmetry (FAA)?
Difference in activity between the left and right frontal lobes
Lower alpha frequency in left frontal lobe = ?
Approach
Lower alpha frequency in right frontal lobe = ?
Avoidance
What are some limitations of EEG frequencies?
Subject to a lot of noise and require filtering
Electrical noise, overhead lighting, movements/breathing
Questions of what FAA actually measures
It is linked to positive emotions AND approach tendencies
Handedness of participant may influence data
Left-handed people may not demonstrate typical left vs right asymmetry