final Flashcards
what is structuralism
- The analysis of the mind in terms of its basic elements
what is structuralism
- The analysis of the mind in terms of its basic elements
contributor to structuralism
- 1879: Wandt and Titchener – 1st experimental psych lab
- Studied the basic elements of consciousness : sensations
- Criticised for being subjective
what is functionalism
- Understanding the adaptive purpose of our thoughts, feelings and behaviour
contributor to funcitonalism
William James (1842-1910)
Used both theoretical and empirical methods
Modern evolutionary psychology
contributors to behaviourism
• 1910: Pavloviam conditioning (physiologist)
- Sound (tone) that was previously associated iwht food can elicit salivation
• 1911: THorndikes law of effect
- Responses followed by a satisfying consequences are likely to recur, those followed by unsatisfying consequences are less likely to recur
• Watsom (1878-1958)
- The proper subject matter of psychology is behaviour, ot unobservable inner consciousness
- Little ablbert study
• Skinner (1904-1990)
what is cognitivism
- Studies mental processes, including perception, thinking, memory and judgment
1960s dissfaction with view that mental life was irrelevant
Thinking has a powerful influence on behaviour
Computer metaphor
Some leading figures include Niesser, Piaget, Broadbent
Experimental methods used o tinder unobserved mental processes
Remains the dominant framework in psychology
what is motivation
= the driver of directed behaviours; particularly out wants and needs
early perspectives of motivation
• Psychodynamic Perspective (Freud) – theorised behaviours motivated by unconscious and conscious desires, which are not in unison
- Three theoretical construts of psyche
iD: unconscious, instinicual, irrational drices, eors and Thanatos
superego: morally responsible drives, operates at preconscious awareness
ego: conscious, rational mind, ensures id and superego drives manifest appropriately
historical measure for motivation
- Thematic apperception tests (TATs) claim to measure unconscious desires
- Longitudal study 1950-1962
- Method
TAT responses assessed four social motives: achievement, power, affiliation and intimacy motivation
Self-report survey of motives (e.g. “is achievement important to you”)
Psychosocial adjustment: income, job promotion and enjoyment, marriage satisfaction, drug use, days off sick etc. - Results:
Achievement (assessed by TAT) more predictive of long term entrepreneurial success htan self-report)
explain drive reduction theories
- Formulated in 1940s
- Thirst, hunger and sexual frustration drive us to reduce the averseness of these states
- Some drives are hierarchical – thirst satisfaction > hunger satisfaction
- Motivated to maintain psychological homeostasis (or equilibrium
explain yerkes dodson law
- Arousal affects strength of drives (Yerkes-Dodson, 1908)
- Inverted U-shaped curve represents relationship between arousal level and performance quality (zajonic, 1965)
- Professional athletes perform between with an audience, novice athletes perform better without an audience (Zajonc, 1965)
- Under-arousal causes ‘stijmulus hunger’ – a drive for stimulation
- ‘stimulus-hunger’ may be satisfied in numerous ways (e.g. chatting with friends, watching TV, fidgeting etc.)
- Under-arousal can increase curiosity (berlye, 1960)
- Sensory deprivation experiments – induced under arousal (Zuckerman and Hopkins, 1966)
explain clashign drives
- Approach-approach conflict – e.g. dinner versus concert?
- Avoidance-avoidance conflict – e.g. failing exam versus studying for exam
- Approach-avoidance conflict – e.g. approaching attractive person versus fear of rejection
explain incentive theories
- Drive reduction (DRT) inadequare; we repeatedly engage in behaviours despite satisfaction of drives
- Incentive theories build on DRT – driven by positive goals
- Incentive theories further differentiate between intrinsic and extrinsic motivation
- Intrinsic motivation can be devalued by extrinsic reinforcements (Lepper, Greene and Nisbett, 1973)
explain sexual motivation
- Libido, human sexual desire, drive for sexual activity and pleasure (Regan and Berscheid, 1999)
- Physiological drivers of libido include testosterone and a protein (DRD4) related to neurotransmitter dopamine
- ## Link between genes and self-reported sexual desire – 19% had DRD4 variation linked with increased sexual desire
what are reasons men have higher libido
Evidenc suggests men have stronger libido than women because men:
- Desire sex more freqwuently and experience more arousal (hiller 2005)
- Have more variety and number of sexual fantasies (lietenbery and henning, 1995)
- Masturbate more frequently ( Oliver and Hyde 1993)
- Want more sexual partners (buss and Schmitt 1993)
- Want to have sex earlier than women in relationships (spreecher, barbee and schwartz, 1995)
- But variability within and between sexes exists
explain the sexual response cycle
- Pionerring research by Masters and Johnson in mid-1950s into human sexual reosonse
- Human sexual reponse cycle has 4 phases (Kaplan 1977)
1. Desire phase
2. Excitement/plateau phase
3. Orgasm ohase
4. Resolution phase - Feelings of love fro ones partner and connection with ones partner predicts sexual satisfaction (Young et al. 2000)
acronym for goal setting:
- S pecific
- M easurable
- A ction-oriented (not outcome)
- R ealistic
- T ime-based
explain bandura and ceryones 1983 study on goals and effect of feedback
- Participants engage in strenuous exercise cross-trainer task for 5 mins, three different times during study:
1. Baseline: no instruction given by experimenter beforehand
2. 2nd rouxnd: received 1 of 4 types of instruction from experimenter afterwards
3. 3rd round: no instruction given by experimenter beforehand
what does “fat” mean
“fat” – referring to the amount of white fat cells stores on a persons body (we have more when we consume more energy (calories) than we expend
what are the BMI categories
18-25, 25-30 is overweight and 30+ obese
what are the two modes the body has of energy storage
- A short-term store using glucose (less important for intake)
- A long term store using fat (more important for intake)
how do changes in body fat affect appetite
- Fat cell secrete a hormone called leptin
- More fat= more leptin, supressing appetite
- Less fat = less leptin, allowing food intake to increase
what part of the brain helps to stop eating
Ventromedial nucelus (stop eating)
what part of the brain helps to start eating
Lateral hypothalamus (start eating)
what part of the cortex is responsible for impulsiivity
frotnal
what part of the cortex is responsible for interoception
insula
explain how does portions vary
• people tend to eat what is Infront of them
- If you have a large plate you will east more than if you have a small one
- If you are given a larger serving you will eat more
- Average portions sizes have increased in recent times
• Mean portion sizes in the US are on average 25% larger than in France
- So are the plate sizes, recipe book portions, and even guidebooks focus more on portion size in the US than in France
- A candy bar in Philadelphia was 41% large than the same candy bar sold in paris
- A soft drink was 52% larger and a hot dog was 63% larger
- A carton of yoghurt was 82% larger
when and how much we eat is driven by….
- When and how much we eat seems to be mainly driven by environmental factors that we ar not usually aware of – mindless eating – environment/brain
- Biological factors are probably only important at the extremes (starvation? gross over-indulgence) – body/brain
- Consiuos control of food intake probably only plays a small role – self-brain
- Conclusion: the brain ultimately controls how much we eat, so when control of eating breaks down, this is a brain-related problem
Binge eating disorder
- repeated binges – no compensation – in 9-18% obese people
Anorexia Nervosa
- dietary restriction (and/or purging) intense fear of weight gain, disturbance of body image – in 0.5-2% of women
- no single cause
- significant genetic components (obsessive compulsive traits – perfectionism, rigidity), common appearance at menarche coincides with a major redistribution of body fat creating a ‘window of vulnerability’
- stress, adverse life events, cultural emphasis on thinness also play a role
- difficult to treat and most lethal of all psychiatric disorders (5-10% lifetime mortality)
Bulimia nervosa
- binge eating with compensation, adverse self-evaluation – in 1-3% of women
- multi-factorial but far easier to treat than AN
Muscle dysmorphia
- body dysmorphia disorder subclass
- centred around building more muscle – preoccupated with body being too small or insufficiently muscular
- more commen in men (2.2% vs. 1.4% in women)
Orthorexia nervosa
- not formally recognised
- not in DNA – 5th Ed – but becoming more recognised
- obsession with “healthful/proper/clean eating”
what is the funciton of leanriing
It helps us to adapt to changing conditions in the world.
definition of learning
“a relatively permanent change in behavioural potentiality that occurs as a result of reinforced practice” (Kimble, 1961)
define associative learning
- Associative learning: result of learning to associate one stimulus with another
what are the costs of leanrin gq
- there is delayed reproductive effort and/or success
- increased juvenile vulnerability
- increased parental investment in young
- Greater complexity of the nervous system: learning requires complex CNS requires high energy costs to main and serve nerve tissue. Brains use 20% metabolic energy but is only 2% of the body’s weight learning abilities cost energy
- developmental fallibility: trial and error vs. instinct danger of learning wrong info. instincts guard against that
what are the types of leanring
- NOTICING AND IGNORING – sensitisation and habituation
- need to notice important events but learn to ignore events that occur repeatedly without consequence - LEANRING WHAT EVENTS SIGNAL – classical conditioning
- need to learn when something is about to happen so that we can prepare for it - LEARNING ABOUT THE CONSEQUENCES OF OUR BEHAVIOUR – operant conditioning
- need to lean the results of our behaviours to avoid making mistakes and repeat behaviours that produce positive outcomes; learn when and how to act - LEARNING FROM OTHERS – observational learning
- need to learn from the results of the behaviours of others as well
what is habituation
decline in the tendency to respond to an event that has become familiar through repeated presentation; can be short or long term
what is the simplest form of learning
habituation
when does senstistation
o SENSITATIONS OCCURS WHNE OUR REPONse ot an event increases rather than decreases with repeated exposure
- often we become sensitised to repeqated loud noises and our reaction becomes more intense and prolonged e.g. baby crying
what is classical condnitonig
CLASSICAL CONDITIONING: a form of learning in which animals come to respond to a previously neutral stimulus that has been paired with another stimulus that elicits an automatic response
we learn that a stimulus predicts the occurrence of a certain event and we respond accordingly
explain pavlovs discovery regarding classical conditoning
• Ivan Pavlov’s primary research was the digestion of dogs – however he observed the dogs seemed to be anticipating the meat powder and responded to the stimuli that signalled the foods arrival
- started with a neutral stimulus (NS, one that did not elicit any particular response) – Pavlov used a metronome
- he paired the neutral stimulus with an unconditioned stimulus (UCS, a stimulus that elicits an automatic reflexive response) e.g. meat powder and the reflexive response was the unconditioned response (UCR, an unlearned response to an unconditioned stimulus occurring without prior conditioning)
- Pavlov continued to pair conditioned stimulus (CS, previously NS that, through repeated pairings with US, now causes a CR) and UCS – observed the metronome elicited a response – salivation = conditioned response (CR, a response previously associated with a non-neutral stimulus that comes to be elicited by a neutral stimulus)
what is acquisition
the learning phase during which a conditioned response is established
explain acquisition
o As the conditioned stimulus and the unconditioned stimulus are paired over and over again, the conditioned response increases progressively in strength
o backward conditioning – UCS is present before the CS – is very difficult to achieve for conditioning to work efficiently the CS must forecast the appearance of UCS
what is extinction
= gradual reduction and eventual elimination of the conditioned response after the conditioned stimulus is present repeatedly without the unconditioned stimulus
explain extinction
o The CR decreases in magnitude and eventually disappears when the CS is repeatedly presented alone
o during extinction a new response, which in the case of Pavlov’s dogs was the absence of salivation inhibits the CR (salivation) – becomes overshadowed by the new behaviour
what is spontaneous recovery
sudden re-emergence of an extinct conditioned response after a delay in exposure to the conditioned stimulus
what is the renewal effect
sudden re-emergences of a conditioned response following extinction when an animal is returned to the environment in which the conditioned response was acquired
what is stimulus generalisation
process by which conditioned stimuli similar, but not identical to the original conditioned stimulus elicit a conditioned response
explain stimulus generalisation
o occurs along a generalisation gradient: the more similar to the original CS the new CS is, the stronger the CR will be
o typically adaptive as it allows us to transfer what we have learned to new things
what is Stimulus discrimination
process by which conditioned stimuli similar but no identical , to the orginal conditioned stimulus elicit a conditioned response
explain Stimulus discrimination
o occurs when we exhibit a less pronounced CR to CSs that differ from the original CS
o is adaptive because it allows us to distinguish among srtimuli that share some similarites but that differ in inmporant ways
what is higher order conditioning
developing a conditioened response to a conditioned stimulis by virtue of its assoication with another conditioned stimulus
explain higher order conditioning
o allows us to extend classical conditioning to a host of new stimuli
o e.g. why when someone says “kebab” we feel hungry – we have already come to assoicate the sight, sound and smell of a kebab with satisfying our hunger and we will eventually come to assoicate the word”kebab” with these CSs
o two factors determine the extent of higher-order conditoning:
1. the similatiry between the higher-order stimulus and the original conditioned stimulus
2. the frequency and consistency with which the two conditioned stimuli are paired
2 applications of classical condtioning in daily life
advertising
fears and phobias
why does condiotnign responding develop
- the CS doesn’t just “substitute” for the US (as was originally believed)
- CR is not always the same as the UR
- e.g. rats “freezing” instead of jumping when shoch is about to occur
- cognitive view of classical condition the CS predicts the US (learn association_ and so we react by preparing for that event
what is excitory conditioning
- relative likelihood of something (food) occuring given that something else (bell) did
what is inhibitory conditoining
- relative likleihood of something NOT occuring given that something else did (bell)
what is OPPONENT PROCESS THEORY OF ACQUIRED MOTIVATION
- emotion-arousing stimuli emotional responses
- the concepts of habituation and sensation have been extended to emotions and motivated behaviour
who found the OPPONENT PROCESS THEORY OF ACQUIRED MOTIVATION
Solomon and Corbitt 1974
what did soloman and corbitt 1974 examine
OPPONENT PROCESS THEORY OF ACQUIRED MOTIVATION
o examined fear anf relief of skydivers before and after their jumps
o beginners experience extreme fear as hey jump, which is replaced with great relief when the y landl. With repeated jumps the fear decreases and the post-jump pleasure increases. This process may explain a variety of thrill-seeking behaviours
o Stage A (fear) decreases with more jumps
o `Stage B (relief/thrill) increases with more jumps
what is the a process according to soloman and corbitt 1974
the initial reaction
- plot positive side of graph regardless of whether you find the experience pleasant or not.
- onset stimulus causes a sudden emotional reaction, which quickly reaches its peak
- lasts as long as the stimulus is present, then ends quickly
what is the b process according to soloman and corbitt 1974
After reaction
- the offset stimulus causes an emotional after reaction that in some sense is the opposite of the initial reaction
- is more sluggish in its onset and decay that the initial reaction
contributor to structuralism
- 1879: Wandt and Titchener – 1st experimental psych lab
- Studied the basic elements of consciousness : sensations
- Criticised for being subjective
what is functionalism
- Understanding the adaptive purpose of our thoughts, feelings and behaviour
contributor to funcitonalism
William James (1842-1910)
Used both theoretical and empirical methods
Modern evolutionary psychology
contributors to behaviourism
• 1910: Pavloviam conditioning (physiologist)
- Sound (tone) that was previously associated iwht food can elicit salivation
• 1911: THorndikes law of effect
- Responses followed by a satisfying consequences are likely to recur, those followed by unsatisfying consequences are less likely to recur
• Watsom (1878-1958)
- The proper subject matter of psychology is behaviour, ot unobservable inner consciousness
- Little ablbert study
• Skinner (1904-1990)
what is cognitivism
- Studies mental processes, including perception, thinking, memory and judgment
1960s dissfaction with view that mental life was irrelevant
Thinking has a powerful influence on behaviour
Computer metaphor
Some leading figures include Niesser, Piaget, Broadbent
Experimental methods used o tinder unobserved mental processes
Remains the dominant framework in psychology
what is motivation
= the driver of directed behaviours; particularly out wants and needs
early perspectives of motivation
• Psychodynamic Perspective (Freud) – theorised behaviours motivated by unconscious and conscious desires, which are not in unison
- Three theoretical construts of psyche
iD: unconscious, instinicual, irrational drices, eors and Thanatos
superego: morally responsible drives, operates at preconscious awareness
ego: conscious, rational mind, ensures id and superego drives manifest appropriately
historical measure for motivation
- Thematic apperception tests (TETs) claim to measure unconscious desires
- Longitudal study 1950-1962
- Method
TAT responses assessed four social motives: achievement, power, affiliation and intimacy motivation
Self-report survey of motives (e.g. “is achievement important to you”)
Psychosocial adjustment: income, job promotion and enjoyment, marriage satisfaction, drug use, days off sick etc. - Results:
Achievement (assessed by TAT) more predictive of long term entrepreneurial success htan self-report)
explain frive reduction theories
- Formulated in 1940s
- Thirst, hunger and sexual frustration drive us to reduce the averseness of these states
- Some drives are hierarchical – thirst satisfaction > hunger satisfaction
- Motivated to maintain psychological homeostasis (or equilibrium
explain yerkes dodson law
- Arousal affects strength of drives (Yerkes-Dodson, 1908)
- Inverted U-shaped curve represents relationship between arousal level and performance quality (zajonic, 1965)
- Professional athletes perform between with an audience, novice athletes perform better without an audience (Zajonc, 1965)
- Under-arousal causes ‘stijmulus hunger’ – a drive for stimulation
- ‘stimulus-hunger’ may be satisfied in numerous ways (e.g. chatting with friends, watching TV, fidgeting etc.)
- Under-arousal can increase curiosity (berlye, 1960)
- Sensory deprivation experiments – induced under arousal (Zuckerman and Hopkins, 1966)
explain clashign drives
- Approach-approach conflict – e.g. dinner versus concert?
- Avoidance-avoidance conflict – e.g. failing exam versus studying for exam
- Approach-avoidance conflict – e.g. approaching attractive person versus fear of rejection
explain incentive theories
- Drive reduction (DRT) inadequare; we repeatedly engage in behaviours despite satisfaction of drives
- Incentive theories build on DRT – driven by positive goals
- Incentive theories further differentiate between intrinsic and extrinsic motivation
- Intrinsic motivation can be devalued by extrinsic reinforcements (Lepper, Greene and Nisbett, 1973)
explain sexual motivation
- Libido, human sexual desire, drive for sexual activity and pleasure (Regan and Berscheid, 1999)
- Physiological drivers of libido include testosterone and a protein (DRD4) related to neurotransmitter dopamine
- ## Link between genes and self-reported sexual desire – 19% had DRD4 variation linked with increased sexual desire
what are reasons men have higher libido
Evidenc suggests men have stronger libido than women because men:
- Desire sex more freqwuently and experience more arousal (hiller 2005)
- Have more variety and number of sexual fantasies (lietenbery and henning, 1995)
- Masturbate more frequently ( Oliver and Hyde 1993)
- Want more sexual partners (buss and Schmitt 1993)
- Want to have sex earlier than women in relationships (spreecher, barbee and schwartz, 1995)
- But variability within and between sexes exists
explain the sexual response cycle
- Pionerring research by Masters and Johnson in mid-1950s into human sexual reosonse
- Human sexual reponse cycle has 4 phases (Kaplan 1977)
1. Desire phase
2. Excitement/plateau phase
3. Orgasm ohase
4. Resolution phase - Feelings of love fro ones partner and connection with ones partner predicts sexual satisfaction (Young et al. 2000)
acronym for goal setting:
- S pecific
- M easurable
- A ction-oriented (not outcome)
- R ealistic
- T ime-based
explain bandura and ceryones 1983 study on goals and effect of feedback
- Participants engage in strenuous exercise cross-trainer task for 5 mins, three different times during study:
1. Baseline: no instruction given by experimenter beforehand
2. 2nd rouxnd: received 1 of 4 types of instruction from experimenter afterwards
3. 3rd round: no instruction given by experimenter beforehand
what does “fat” mean
“fat” – referring to the amount of white fat cells stores on a persons body (we have more when we consume more energy (calories) than we expend
what are the BMI categories
18-25, 25-30 is overweight and 30+ obese
what are the two modes the body has of energy storage
- A short-term store using glucose (less important for intake)
- A long term store using fat (more important for intake)
how do changes in body fat affect appetite
- Fat cell secrete a hormone called leptin
- More fat= more leptin, supressing appetite
- Less fat = less leptin, allowing food intake to increase
what part of the brain helps to stop eating
Ventromedial nucelus (stop eating)
what part of the brain helps to start eating
Lateral hypothalamus (start eating)
what part of the cortex is responsible for impulsiivity
frotnal
what part of the cortex is responsible forinteroception
insula
explain how does portions vary
• people tend to eat what is Infront of them
- If you have a large plate you will east more than if you have a small one
- If you are given a larger serving you will eat more
- Average portions sizes have increased in recent times
• Mean portion sizes in the US are on average 25% larger than in France
- So are the plate sizes, recipe book portions, and even guidebooks focus more on portion size in the US than in France
- A candy bar in Philadelphia was 41% large than the same candy bar sold in paris
- A soft drink was 52% larger and a hot dog was 63% larger
- A carton of yoghurt was 82% larger
when and how much we eat is driven by….
- When and how much we eat seems to be mainly driven by environmental factors that we ar not usually aware of – mindless eating – environment/brain
- Biological factors are probably only important at the extremes (starvation? gross over-indulgence) – body/brain
- Consiuos control of food intake probably only plays a small role – self-brain
- Conclusion: the brain ultimately controls how much we eat, so when control of eating breaks down, this is a brain-related problem
Binge eating disorder
- repeated binges – no compensation – in 9-18% obese people
Anorexia Nervosa
- dietary restriction (and/or purging) intense fear of weight gain, disturbance of body image – in 0.5-2% of women
- no single cause
- significant genetic components (obsessive compulsive traits – perfectionism, rigidity), common appearance at menarche coincides with a major redistribution of body fat creating a ‘window of vulnerability’
- stress, adverse life events, cultural emphasis on thinness also play a role
- difficult to treat and most lethal of all psychiatric disorders (5-10% lifetime mortality)
Bulimia nervosa
- binge eating with compensation, adverse self-evaluation – in 1-3% of women
- multi-factorial but far easier to treat than AN
Muscle dysmorphia
- body dysmorphia disorder subclass
- centred around building more muscle – preoccupated with body being too small or insufficiently muscular
- more commen in men (2.2% vs. 1.4% in women)
Orthorexia nervosa
- not formally recognised
- not in DNA – 5th Ed – but becoming more recognised
- obsession with “healthful/proper/clean eating”
what is the funciton of leanriing
It helps us to adapt to changing conditions in the world.
definition of learning
“a relatively permanent change in behavioural potentiality that occurs as a result of reinforced practice” (Kimble, 1961)
define associative learning
- Associative learning: result of learning to associate one stimulus with another
what are the costs of leanrin gq
- there is delayed reproductive effort and/or success
- increased juvenile vulnerability
- increased parental investment in young
- Greater complexity of the nervous system: learning requires complex CNS requires high energy costs to main and serve nerve tissue. Brains use 20% metabolic energy but is only 2% of the body’s weight learning abilities cost energy
- developmental fallibility: trial and error vs. instinct danger of learning wrong info. instincts guard against that
what are the types of leanring
- NOTICING AND IGNORING – sensitisation and habituation
- need to notice important events but learn to ignore events that occur repeatedly without consequence - LEANRING WHAT EVENTS SIGNAL – classical conditioning
- need to learn when something is about to happen so that we can prepare for it - LEARNING ABOUT THE CONSEQUENCES OF OUR BEHAVIOUR – operant conditioning
- need to lean the results of our behaviours to avoid making mistakes and repeat behaviours that produce positive outcomes; learn when and how to act - LEARNING FROM OTHERS – observational learning
- need to learn from the results of the behaviours of others as well
what is habituation
decline in the tendency to respond to an event that has become familiar through repeated presentation; can be short or long term
what is the simplest form of learning
habituation
when does senistation
o SENSITATIONS OCCURS WHNE OUR REPONse ot an event increases rather than decreases with repeated exposure
- often we become sensitised to repeqated loud noises and our reaction becomes more intense and prolonged e.g. baby crying
what is classical condnitonig
CLASSICAL CONDITIONING: a form of learning in which animals come to respond to a previously neutral stimulus that has been paired with another stimulus that elicits an automatic response
we learn that a stimulus predicts the occurrence of a certain event and we respond accordingly
explain pavlovs discovery regarding classical conditoning
• Ivan Pavlov’s primary research was the digestion of dogs – however he observed the dogs seemed to be anticipating the meat powder and responded to the stimuli that signalled the foods arrival
- started with a neutral stimulus (NS, one that did not elicit any particular response) – Pavlov used a metronome
- he paired the neutral stimulus with an unconditioned stimulus (UCS, a stimulus that elicits an automatic reflexive response) e.g. meat powder and the reflexive response was the unconditioned response (UCR, an unlearned response to an unconditioned stimulus occurring without prior conditioning)
- Pavlov continued to pair conditioned stimulus (CS, previously NS that, through repeated pairings with US, now causes a CR) and UCS – observed the metronome elicited a response – salivation = conditioned response (CR, a response previously associated with a non-neutral stimulus that comes to be elicited by a neutral stimulus)
what is acquisition
the learning phase during which a conditioned response is established
explain acquisition
o As the conditioned stimulus and the unconditioned stimulus are paired over and over again, the conditioned response increases progressively in strength
o backward conditioning – UCS is present before the CS – is very difficult to achieve for conditioning to work efficiently the CS must forecast the appearance of UCS
what is extinction
= gradual reduction and eventual elimination of the conditioned response after the conditioned stimulus is present repeatedly without the unconditioned stimulus
explain extinction
o The CR decreases in magnitude and eventually disappears when the CS is repeatedly presented alone
o during extinction a new response, which in the case of Pavlov’s dogs was the absence of salivation inhibits the CR (salivation) – becomes overshadowed by the new behaviour
what is spontaneous recovery
sudden re-emergence of an extinct conditioned response after a delay in exposure to the conditioned stimulus
what is the renewal effect
sudden re-emergences of a conditioned response following extinction when an animal is returned to the environment in which the conditioned response was acquired
what is stimulus generalisation
process by which conditioned stimuli similar, but not identical to the original conditioned stimulus elicit a conditioned response
explain stimulus generalisation
o occurs along a generalisation gradient: the more similar to the original CS the new CS is, the stronger the CR will be
o typically adaptive as it allows us to transfer what we have learned to new things
what is Stimulus discrimination
process by which conditioned stimuli similar but no identical , to the orginal conditioned stimulus elicit a conditioned response
explain Stimulus discrimination
o occurs when we exhibit a less pronounced CR to CSs that differ from the original CS
o is adaptive because it allows us to distinguish among srtimuli that share some similarites but that differ in inmporant ways
what is higher order conditioning
developing a conditioened response to a conditioned stimulis by virtue of its assoication with another conditioned stimulus
explain higher order conditioning
o allows us to extend classical conditioning to a host of new stimuli
o e.g. why when someone says “kebab” we feel hungry – we have already come to assoicate the sight, sound and smell of a kebab with satisfying our hunger and we will eventually come to assoicate the word”kebab” with these CSs
o two factors determine the extent of higher-order conditoning:
1. the similatiry between the higher-order stimulus and the original conditioned stimulus
2. the frequency and consistency with which the two conditioned stimuli are paired
2 applications of classical condtioning in daily life
advertising
fears and phobias
why does condiotnign responding develop
- the CS doesn’t just “substitute” for the US (as was originally believed)
- CR is not always the same as the UR
- e.g. rats “freezing” instead of jumping when shoch is about to occur
- cognitive view of classical condition the CS predicts the US (learn association_ and so we react by preparing for that event
what is excitory conditioning
- relative likelihood of something (food) occuring given that something else (bell) did
what is inhibitory conditoining
- relative likleihood of something NOT occuring given that something else did (bell)
what is OPPONENT PROCESS THEORY OF ACQUIRED MOTIVATION
- emotion-arousing stimuli emotional responses
- the concepts of habituation and sensation have been extended to emotions and motivated behaviour
who found the OPPONENT PROCESS THEORY OF ACQUIRED MOTIVATION
Solomon and Corbitt 1974
what did soloman and corbitt 1974 examine
OPPONENT PROCESS THEORY OF ACQUIRED MOTIVATION
o examined fear anf relief of skydivers before and after their jumps
o beginners experience extreme fear as hey jump, which is replaced with great relief when the y landl. With repeated jumps the fear decreases and the post-jump pleasure increases. This process may explain a variety of thrill-seeking behaviours
o Stage A (fear) decreases with more jumps
o `Stage B (relief/thrill) increases with more jumps
what is the a process according to soloman and corbitt 1974
the initial reaction
- plot positive side of graph regardless of whether you find the experience pleasant or not.
- onset stimulus causes a sudden emotional reaction, which quickly reaches its peak
- lasts as long as the stimulus is present, then ends quickly
what is the b process according to soloman and corbitt 1974
After reaction
- the offset stimulus causes an emotional after reaction that in some sense is the opposite of the initial reaction
- is more sluggish in its onset and decay that the initial reaction
what is the a process directly related to?
- a-process is directly related to the presentation of the emotional stimulous
weaknesses of the experimental approach to personality
o important parts o personality hard to test
o not in the context of the “whole person”
o participants bring own expectations into lab
o experiment is a social situation
what is the drug effect
net effect of a-process minus b-process
what is the a-process in taking drugs
the high
what is the b-process in taking drugs
withdrawl symptoms are stronger and last longer (b-process)
who looks ath teh compensatory response to drugs
Siegel, Hinson, Krank & McCUlly 1982
- rats injected with ehroin every second day for 30 days
- altenrate days inejected with dextrose (sugar) solution
- administered either in home room or differnet room
- half recivered heroin in home room: dextrose in the other room; other hald recived oppsotie injected room order
- heorin intake increased each day
- third group of rats (controls) recivered dextrose in both rooms
- test – double dose of heroin given to all animals – half experiemntal group in room where heorin normally recived; half in other room; control goroup got double dose
- DV (dependent variable) = mortalty
explain the vietnam soliders and drugs
Vietnam soliders
- 40% of US soliders tried heroin in Vietnam
- 20% were addicted rehab on return to USA
- affter rehab, only 5% relapsed (i.e. 95% were rehabilitated)
- relapse rate of people not at war = 90% perhaps the significant difference is due to the fact the soliders spent all day in a cenrtain environemnt – filled of stress and built friends with fellow soliders who were heroin users – menaing they had multiple stimuli driving them to use heroin – when home in a new enviornemnt without het stress it was easier to quit
what is operant condionting
learning controlled by the consequences of the organisms behaviour
freuds topographical model
o conscious mental processes
- rational, goal directed thoughts
- at the centre of awareness
o pre-conscious mental processes
- not conscious but could become conscious at any point
o unconscious mental processes
- irrational
- organised on associative lines (i.e. what is linked with what)
- inaccessible to consciousness because they are repressed (i.e. kept from consciousness to avoid emotional distress)
in classical conditioning reward is:
provided unconditionally
in classical conditioning behaviour primarly depsnds on:
automatic nervous system
in operant conditioning target behaviour is:
emitted volunatrily
in operant conditioning reward is:
contingent on behvaiour