Casey et al - background Flashcards

1
Q

What is localisation of functioning?

A

the idea that each region of the brain has a specific function

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2
Q

What are characteristics of localisation of functioning?

A
  • works in isolation on own function
  • damage to brain region = no function
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3
Q

What is brain plasticity?

A

when a region of the brain is damaged and can no longer function a different brain region adapts the function of the damaged area

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4
Q

What are the brain regions associated with Casey’s study?

A

1- inferior frontal gyrus
2- ventral striatum

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5
Q

What is the function of the inferior frontal gyrus?

A
  • go and no go tasks
  • risk aversion
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6
Q

What is the function of the ventral striatum?

A
  • reward pathway
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7
Q

What is delay of gratification?

A

the ability to resist temptation in favour of long-term goals

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8
Q

What type of situations are involved with delay of gratification?

A

alluring situations

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9
Q

How do alluring situations link to delay of gratification?

A

alluring situations can diminish our control

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10
Q

What factor impacts delay of gratification?

A

age

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11
Q

How does age impact delay of gratification?

A

what we consider to be an alluring situation that requires a capacity to control our impulses often changes with age

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12
Q

What does the ability to delay gratification rely on?

A

cognitive control

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13
Q

What background investigation inspired Casey’s study?

A

Mischel’s Marshmallow test

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14
Q

What is Mischel’s Marshmallow test?

A
  • placing marshmallow in front of child
  • tells child if they don’t eat it they can have 2 when she gets back (+1)
  • adult leaves room
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15
Q

What are the two types of cues?

A

hot and cold

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16
Q

What are some hot cues in the marshmallow test?

A

smelling / tasting the marshmallow

17
Q

What makes a cue ‘hot’?

A

making the delay of gratification harder to resist

18
Q

What are examples of the cold cues in the marshmallow test?

A

recognising they will get two if they wait / avoiding looking at the marshmallow

19
Q

What does being a high delayer mean?

A

resist temptation easily

20
Q

What does being a low delayer mean?

A

does not resist temptation easily

21
Q

What is a ‘go’ task?

A

a stimuli that should elicit a response e.g., a green button for go; response = pressing button

22
Q

What is a ‘no go’ task?

A

a stimuli that should not elicit a response e.g., a red button for no; response = not pressing button

23
Q

What does the inferior frontal gyrus have to do with delay of gratification?

A

IFG has a role in our interpretation of facial expressions and the appropriate emotional responses - correlation found between avoidance of risky behaviour

24
Q

What does the ventral striatum have to do with delay of gratification?

A

activated due to rewards and associated with reward and immediate choices

25
Q

How are go/ no go tasks similar to delay of gratification?

A

the brain is used in the same way

26
Q

What does a go/ no go task determine?

A

a participant’s ability to delay the impulse to press the button and therefore control the ventral striatum with the IFG

27
Q

What does performance on the marshmallow task predict?

A

results on the cognitive go/ no go tasks

28
Q

What does the predictions of behaviour imply?

A
  • stable trait
  • criterion validity